This is an ARCHIVED VERSION of the 2000 electronic edition of the MARC 21 Concise Formats.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.
This section contains descriptions of four subfields that are used to link field data to specific institutions or to other fields. These subfields are defined for several ($0 (Record control number) and $5 (Institution to which field applies)) or most $6 (Linkage), and $8 (Field link and sequence number)) fields in the format, thus their descriptions are brought together in this section. The subfields are included in field level subfield lists wherever they are defined, with pointers to this section.
084 | 0#$alcc |
153 | ##$aBS580.M6$hThe Bible$hGeneral$hWorks about the Bible$hMen, women and children of the Bible$hBiography$hIndividual Old Testament characters, A-Z$jMoses |
700 | 00$aMoses$c(Biblical leader)$0(DLC)n##79058331 |
084 | 0#$alcc |
153 | ##$aHG3881.5.I58$hFinance$hForeign exchange. International finance$hInternational finance. International monetary system. International banking$hIndividual international financial institutions, A-Z$jInternational Monetary Fund |
710 | 20$aInternational Monetary Fund$0(DLC)n##81052755 |
084 | 0#$alcc |
153 | ##$aPR1588$hEnglish literature$hAnglo-Saxon literature$hIndividual authors and works$hBeowulf$hCriticism$jLanguage, grammar, etc. |
730 | 00$aBeowulf$xLanguage$0(DLC)sh#85013267 |
The sources for the MARC code are the MARC Code List for Organizations (maintained by the Library of Congress) and Symbols and Interlibrary Loan Policies in Canada (maintained by the National Library of Canada).
084 | 0#$aDDC$c21 |
153 | ##$a005.262$hGeneralities$hComputer programming, programs, data$kComputer programming and programs$hProgramming for specific types of computers, for specific operating systems, for specific user interfaces$hProgramming for digital microcomputers$jProgramming in specific programming languages |
683 | 1#$iArrange alphabetically by name of programming language, e.g., C++ |
683 | 1#$aUse first three letters of programming language to subarrange$5(location identifier) |
$6<linking tag>- <occurrence number> / <script identification code> / <field orientation code>
Subfield $6 is always the first subfield in the field.
Descriptions of multiscript record models, with examples, are in the Multiscript Records section; specifications for field 880 are in the Other Variable Fields; specifications for character sets and repertoires for scripts are found in MARC 21 Specifications for Record Structure, Character Sets, and Exchange Media.
Linking tag and occurrence number
The Linking tag part contains the tag number of the associated field.
This part is followed immediately by a hyphen and the two-digit occurrence
number part. A different occurrence number is assigned to each set of associated
fields within a single record. The function of an occurrence number is
to permit the matching of the associated fields (not to sequence the fields
within the record). An occurrence number may be assigned at random for
each set of associated fields. An occurrence number of less than two
digits is right justified and the unused position contains a zero.
When there is no associated field to which a field 880 is linked, the occurrence number in subfield $6 is 00. It is used if an agency wants to separate scripts in a record. The linking tag part of subfield $6 will contain the tag that the associated regular field would have had if it had existed in the record.
680 | 0#$6880-02$iClass here editions first edited in the 20th century. |
880 | ##$6680-02/N$i<Explanatory text in Cyrillic script> |
Script identification code
The occurrence number is followed immediately by a slash (/) and the script
identification code. This code identifies the alternate script found in
the field. The following codes are used:
| Code | Script |
(3 |
Arabic |
(B |
Latin |
$1 |
Chinese, Japanese, Korean |
(N |
Cyrillic |
(2 |
Hebrew |
880 | 1#$6153-01/(2/r$j<Caption in Hebrew script> |
The entire field need not be in the script identified in subfield $6. If more than one script is present in the field, subfield $6 will contain the identification of the first alternate script encountered in a left-to-right scan of the field.
Note also that the script identification code is used in field 880, subfield $6, but this data element is not generally used for subfield $6 of the associated regular field. In the associated field, the data is assumed to be the primary script(s) for the record.
Orientation code
In a MARC record, the contents of field 880 are always recorded in their logical
order, from the first character to the last, regardless of field orientation.
For a display of the field, the default field orientation is left-to-right.
When the field contains text that has a right-to-left orientation, the script
identification code is followed by a slash (/) and the field orientation
code. The MARC field orientation code for right-to-left scripts is
the letter r. The orientation code is only included in fields with right-to-left
orientation, since left-to-right orientation is the default orientation in 880
fields. (See MARC 21 Specifications
for Record Structure, Character Sets, and Exchange Media for a detailed
description of field orientation.)
880 | ##$6680-00/(2/r$a<Scope note in Hebrew script> |
Note that the orientation code is used in field 880, subfield $6, but
this data element is not generally used for subfield $6 of the associated regular
field. In the associated field, the data is assumed to be the usual orientation
of the primary script(s) for the record.
Subfield $8 contains data that identifies linked fields and may also propose a sequence for the linked fields. Subfield $8 may be repeated to link a field to more than one other group of fields. The structure and syntax for the field link and sequence number subfield is:
<linking number>.<sequence number> \ <field link type>
Linking number
This is the first data element in the subfield and required if the subfield
is used. It is a variable-length whole number that occurs in subfield $8 in
all fields that are to be linked. Fields with the same linking number are considered
linked.
Sequence number
This number is separated from linking number by a period "." and is optional.
It is a variable-length whole number that may be used to indicate the relative
order for display of the linked fields (lower sequence numbers displaying before
higher ones). If it is used it must occur in all $8 subfields containing the
same linking number.
Field link type
This code is separated from preceding data by a reverse slash "\". It is a code
indicating the reason for the link and it follows the link number, or sequence
number if present. In the absence of a field link type, it is assumed that subfield
$8 is used for linking and sequencing related 6XX (Notes) or 76X (number building
instructions and subarrangements) fields. The use of subfield $8 to maintain
the order of these fields is essential to the understanding and application
of the subarrangement or table. No explicit field link types have been defined
in the MARC 21 Format for Classification Data.
084 |
0#$alcc |
153 |
##$aHE394.A$cHE394.Z$hTransportation and communications$hWater transportation$hWaterways$hBy region or country$hUnited States$jRiver improvement. By name of river, A-Z |
763 |
08 $iUnder each: |
763 |
10$81.1 $a.x$jPeriodicals. Series$p153 |
763 |
10$81.2 $a.x3$jGeneral works$p153 |
763 |
10$81.3 $a.x4$jGeneral special$p153 |
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