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253 - Complex See Reference (R)

MARC 21 Classification - Concise

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 (Invalid Number Tracing) or 553 (Valid Number Tracing) tracing field.

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)
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.
$y - Table sequence number for internal subarrangement or add table (R)
$z - Table identification (R)
Identification of the table to which a classification number recorded in field 253 belongs, if the classification number is part of a table. For a classification number span, subfield $z is given only once, before the first number. Subfield $z is input before the first element of the classification number in the first subfield $a. The identification of the table by which a classification number or span is further sub-arranged is contained in field 762 (Table Identification).
$6 - Linkage (NR)
See the description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number (R)
See the description of this subfield in Appendix A: Control Subfields.
253 0#$iFor government ownership of a specific mode of transportation, see the mode
253 1#$iDo not use for comprehensive works on parapsychological and occult forecasting and forecasts; class in$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., disturbances of May-June 1968 in France$a944.0836
253 2#$iFor metabolism within a specific function, system, or organ, see the function, system, or organ, e.g., metabolism of plasma$a612.116
253 2#$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

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