MARC 21 Concise Classification: Complex See Reference Fields (2XX)

This is an ARCHIVED VERSION of the 2000 electronic edition of the MARC 21 Concise Formats.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.

Complex see references contain explanatory text and classification numbers referred to when the relationship that exists between classification numbers cannot be adequately conveyed using simple cross references. In the MARC 21 classification format, only one Complex See Reference field is currently defined.

253 - COMPLEX SEE REFERENCE (R)

253 - COMPLEX SEE REFERENCE (R)

The explanatory text and the Classification number referred to that are required when a see reference relationship exists between classification numbers that cannot be adequately conveyed by one or more simple cross references generated from a 453 or 553 tracing field.

Indicators

First - Type of reference
- 0 - See reference
- 1 - Standard subdivisions do-not-use reference
- 2 - Class elsewhere reference
Second - Undefined
- # - Undefined

Subfield Codes

$a - Classification number referred to--single number or beginning number of span (R)
$c - Classification number referred to--ending number of span (R)
$i - Explanatory text (R)
The explanatory text of the see reference or see note. The text may be broken up by subfield $a or $c data and may be only a connector term, such as e.g. or and.
$z - Table identification (R)
The identification of the table to which the classification number belongs. The identification of the table by which a classification number or span is further sub-arranged is contained in field 762 (Table Identification). Subfield $z is input before the first element of the classification number in the first subfield $a.
$6 - Linkage (NR) See Control Subfields
$8 - Field link and sequence number (R) See Control Subfields

Examples

253	0#$iFor government ownership of a specific mode of transportation, see the mode
253	2#$iFor metabolism within a specific function, system, or organ, see the function, system, or organ, e.g., metabolism of plasma $a612.116
253	1#$iDo not use; class comprehensive works on parapsychological and occult forecasting and forecasts in $a133.3. $iClass a specific type of forecasting or forecast with the type, without adding notation $z1 $a0112 $ifrom Table 1, e.g., astrological methods of forecasting $a133.5
253	2#$iClass conflict in a specific social relation with the relation, e.g. racial conflict $a305.8; $iclass a specific conflict considered an historical event with the event in $a900, $ie.g., the disturbances of May-June 1968 in France $a944.0836
253	2#$iClass illuminated manuscripts and books in specific languages produced in specific countries and localities in $a745.67093 $c745.67099
253	0#$iFor rules of practice before a separately classed agency, see the issuing agency
253	2#$iClass systems in a specific subject or discipline with the subject or discipline, plus notation $z1 $a011 $ifrom Table 1, e.g., systems theory in the social sciences $a300.11
253	2#$iClass treatment with respect to miscellaneous specific kinds of persons of a specific racial, ethnic, national group in $z1 $a081 $c088 $ie.g., Chinese children $z1 $a083; $iclass persons treatment (e.g., biography) of members of a specific racial, ethnic, national groups in $z1 $a0923; $iclass treatment with respect to specific racial, ethnic, national groups in places where they predominate $z1 $a091 $c099

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