MARC 21 Concise Classification: Number Building Fields (76X)


This is an ARCHIVED VERSION of the 2001 electronic edition of the MARC 21 Concise Formats. Please see
www.loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Fields 761-768 provide instructions for building onto classification numbers from sources within the schedule and tables of the scheme identified in field 084 (Classification Scheme and Edition). Such fields are highly structured, and many are intended to assist the classifier in constructing classification numbers. The information in these fields is not written in a form adequate for public display.

Footnotes containing instructions that apply to several classification numbers are converted to the appropriate 6XX or 76X field.

Information for Translators and Other Users
Items highlighted in red indicate changes made after the 2000 edition of the MARC 21 Concise Formats was published and are included in the 2001 printed edition of the MARC 21 Concise Formats.


761 - ADD OR DIVIDE LIKE INSTRUCTIONS (R)

Information necessary to construct a classification number by adding numbers from other parts of a schedule or from a table or by basing it on numbers defined in other part of a schedule (dividing it the way numbers in other parts of the schedule are divided).

Indicators

Subfield Codes

Examples


761

#0$iAdd country number in table to$b910

761

#0$iAdd to base number$b025.29$inotation$z2$d1$c9$ifrom Table 2, e.g., acquisition of materials from Latin America$e025.298

761

#1$81.1$iAdd to base number$b338.17$ithe numbers following$r63$iin$d633$c638$ie.g., rice or seed rice$e338.17318,$iforestry$e338.1749,$iforest products$e338.17498;$ihowever,

761

#2$81.2$ifor supply of timber in nature, see$x333.7511;

761

#2$81.3$ifor demand for timber, see$x333.7512

761

#1$81.1$iAdd to base number$b660.2844$ithe numbers following$r547.2$iin$d547.21$c547.29,$ie.g., fermentation$e660.28449;$ihowever,

761

#3$81.2$ipolymerization relocated from$x660.28448$ito$x668.92

761

#1$81.1$iAdd to base number$b333.85$ithe numbers following$r553$iin$d553.2$c553.9,$ie.g., tin$e333.85453,$iuranium$e333.854932;$ihowever,

761

#2$81.2$ifor fossil fuels, see$x333.82;

761

#2$81.3$ifor groundwater, see$x333.9104

761

#1$81.1$iAdd to base number$b759$ithe numbers following$z2$r4$iin notation$z2$d43$c48$ifrom Table 2, e.g., painting and paintings of France$e759.4;$ihowever,

761

#3$81.2$iindividual painters from countries of former Soviet Central Asia relocated from$x759.7$ito$x759.9584$c759.9587

761

#0$iAdd as instructed under$a102$c108

761

#0$iAdd country number in table to$bNB200

761

#0$iAdd to base number$b025.06$inotation$d001$c999,$ie.g., MEDLINE$e025.0661

761

#0$iDivide like$dND1309$cND1309.6

761

#0$iAdd to base number$b016 notation$d001$c999$ie.g., bibliographies of philosophy$e016.1,$iof novels$e016.80883

761

#0$iAdd to base number$b780.0$ithree-digit notation$d001$c999,$ie.g., music and literature$e780.08,$imusic and Welsh literature$e780.0891$i(not$n780.089166),$imusic and the performing arts$e780.079$i(not$n780.07902)

761

#0$iAdd$f00$ifor standard subdivisions; see instructions at beginning of Table 1

761

#0$iSubarrange like$dQC793.5.A22$cQC793.5.A229

761

#0$iAdd to base number$b88$ias instructed at the beginning of Table 3 e.g., a collection of classical Greek poetry;$e881.008$ihowever, observe the special interpretations of and exceptions to notation from Table 3 that appear below, e.g., collections of classical Greek poetry of the medieval and Byzantine periods$e881.0208,$icritical appraisal of classical Greek epic poetry and fiction of the ancient period$e883.0109

761

#0$iAdd to base number$b014$ithe numbers following$r03$iin$d031$c039$i(but not notation 02 for books of miscellaneous facts), e.g., bibliographies and catalogs of anonymous and pseudonymous works in French$e014.41

761

#0$81.1$iAdd to base number$b755$ithe numbers following$r704.948$iin$d704.9482$c704.9489,$ie.g., paintings of Holy Family$e755.56$i; however,

761

#0$iAdd to$z4$b24$inotation$z6$d1$c9$ifrom Table 6, e.g., French words in the language$z4$e2441,$iFrench words in English$e422.441

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762 - TABLE IDENTIFICATION (R)

The identification of a table which provides an arrangement for or additions to the classification number or number span recorded in field 153. Field 762 is repeated for each table if more than one table applies to the classification number or number span recorded in field 153. If the classification number recorded in field 153 is itself part of a table, the identification of the table to which the classification number belongs is recorded in subfield $z of field 153.

Indicators

Subfield codes

Examples


762

##$zH7$imodified

762

##$zN5$imodified

762

##$zG

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763 - INTERNAL SUBARRANGEMENT OR ADD TABLE ENTRY (R)

One entry in an internal classification subarrangement or add table. The entry may consist of a classification number and its associated caption, a note, or a see reference. A classification number that is part of an external table is recorded in field 153 (Classification Number) with the table identification recorded in subfield $z (Table identification) of that field. An internal table may also be coded as an external one and identified in subfield $z of field 153 to the record to which it applies. In this case, the table which provides the arrangement for or addition to the classification number or number span recorded in 153 is recorded in subfield $z of this field.

Indicators

Subfield Codes

Examples


763

08$81.3$iIncluding state documents$p680

763

08$81.34$iClass here comprehensive works on emergency therapy for specific diseases or kinds of diseases$p680

763

18$81.61$a071$ivs.$a01$jEtiology vs. Microbiology$p684

763

08$81.12$iAdd to$b21$ithe numbers following$r352.1$iin$d352.105$c352.19,$ie.g., international administration$e211$p761

763

10$81.3$a62$kSpecific forms of action$hControl$jStandards

763

08$81.5$mDo not use$x06$mby itself under numbers whose meaning is limited to surgery, since surgery is a therapy. [...]$p684

763

08$81.9$iDo not use; class in$s027$p253

763

08$81.16$iAdd to$b009$ithe numbers following$z2$r1$iin notation$z2$d11$c18$ifrom Table 2, e.g., urban regions$e009732$p761

763

50$81.16$a[042]$hSpecial topics$jArchitecture for persons with disabilities$iRelocated to$x087$p685

763

08$iUnder each:

763

08$zG6041.S$yhistory

763

08$81.20$iClass persons of a specific period in$s01$c09,$iplus notation$z1$a092$ifrom Table 1$p253

763

08$81.14$i5 nos.

763

08$81.18$i(OPTIONAL PERIOD TABLE FOR SPANISH

763

30$81.29$a(5$j2000- )$p683

763

08$81.2$iAs modified under$x616.1$c616.9$p683 [... ]

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764 - RULE IDENTIFICATION (R)

An identification of a rule number that is used to build a number by applying a table. Each unique rule number may be translated into a sequence of steps used by a system to calculate the number in classification schemes that have multiple rules for building specific classification numbers.

Indicators

Subfield Codes

Examples


764

##$a1$iAdd table number to number in 153/a or to number specified in 761/b if present

764

##$a2$iSubtract 1 from number in 153/a and add table number to resulting number

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765 - SYNTHESIZED NUMBER COMPONENTS (R)

Information about how a synthesized number or a portion of a synthesized number was built. It traces the different components of a synthesized number, showing the different portions of the number and where the add instructions are given. If a number was built using two or more instructions, a separate field 765 is given for each instruction.

The information in this field is primarily intended to serve as a tracing of how classification numbers are synthesized to assist classifiers. It facilitates computer manipulation of synthesized numbers, both for validation that the numbers have been synthesized correctly and for index-building, to allow searching every use of a specific number.

Indicators

Subfield Codes

Examples


765

0#$b362.196994$a616.9942$c616.9949$r611$s2

765

0#$b346.046$a346.046$r333$s95

765

0#$b346.04695$a333.7$w333.7$t16

765

0#$b372.1$a372.11$c372.18$r371$s1

765

0#$b372.11$a371.1008$c371.1009$f0$z1$s092

765

1#$b787.2$a784$c788$w784$c788$t1$u787.219369

765

1#$b787.21$a784$c788$v18$c19$r784.1$s9369$u787.219369

765

0#$b255.9$a255.91$c255.97$r271.9$s1$u255.91

765

0#$b255.9$a255.91$c255.97$r271.9$s7$u255.97

765

1#$b255.9$a255.91$c255.97$r271.9$s72$u255.972$u255.97200941$u255.97206

765

1#$b255.972$a255.1$c255.7$f0$z1$s09$u255.97200941

765

1#$b255.972009$z1$a093$c099$z2$s41$u255.97200941

765

1#$b255.972$a255.1$c255.7$w255.1$c255.7$t06$u255.97206

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768 - CITATION AND PREFERENCE ORDER INSTRUCTIONS (R)

Instructions for determining either the order of the elements in a synthesized classification number or the preference for the classification of different characteristics of a topic.

Indicators

Subfield Codes

Examples


768

0#$81.1$iGive priority in notation to the continent, country, locality emphasized. If emphasis is equal, give priority to the one coming first in Table 2

768

0#$iObserve table of preference under$a800

768

0#$iUnless other instructions are given, class a subject with aspects in two or more subdivisions of$a641.563$iin the number coming first, e.g.,$tlow-carbohydrate, low-calorie cooking for persons with diabetes$e641.56314$i(not$n641.5635$ior$n641.5638)

768

1#$81.3$jLabor force by personal characteristics$a331.3$c331.6

768

1#$81.7$jLabor by industry and occupation$a331.7$x(except$a331.702)

768

1#$81.1$iUnless other instructions are given, observe the following table of preference, e.g.,$tlanguage and communication in education and research$z1$e07$i(not$z1$n014):

768

1#$81.2$jSpecial topics$z1$a04

768

1#$81.7$jManagement$z1$a068

768

1#$81.16$jTreatment by specific continents, countries, localities; extraterrestrial worlds$z1$a093$c099....

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