| First Indicator Type of reference 0 - See reference 1 - Standard subdivisions do-not-use reference 2 - Class elsewhere reference |
Second Indicator 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) |
$y - Table sequence
number for internal subarrangement or add table
(R) $z - Table identification (R) $6 - Linkage (NR) $8 - Field link and sequence number (R) |
Explanatory text and the Classification number referred to that are required when a see reference relationship exists between classification numbers that cannot be adequately conveyed by one or more simple cross references generated from a 453 (Invalid Number Tracing) or 553 (Valid Number Tracing) tracing field.
A see also reference that directs the user to a related number is contained in field 353 (Complex See Also Reference).
A cross reference display may be constructed from the 153 and 253 fields of the record. Field 153 (Classification Number) contains the classification number or span referred from. Field 253 contains the explanatory text for the reference and the other classification number(s) or span(s) referred to. When several reference notes are associated with a classification number, each may be recorded in a separate field or they may be combined and recorded in a single field. References providing information about use of numbers discontinued in whole or in part for a topic and about topics relocated in whole or in part to other numbers are contained in field 685 (History Note).
| 084 |
0#$alcc [Library of Congress Classification] |
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| 153 | ##$aHE198$hTransportation and communications$jGovernment ownership (General) | ||||||||
| 253 | 0#$iFor government ownership of a specific mode of transportation, see the mode | ||||||||
| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$a130.112$hPhilosophy, parapsychology and occultism, psychology$hParapsychology and occultism$hPhilosophy and theory$hSystems$jForecasting and forecasts | ||||||||
| 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 | ||||||||
| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$a303.6$hSocial sciences$kSpecific topics in sociology and anthropology$hSocial processes$jConflict and conflict resolution | ||||||||
| 253 | 2#$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$a944.0836 | ||||||||
| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$612.39$hTechnology (Applied sciences)$hMedicine and health$hHuman physiology$kSpecific functions, systems, organs$hDigestion$jMetabolism | ||||||||
| 253 | 2#$iFor metabolism within a specific function, system, or organ, see the function, system, or organ, e.g., metabolism of plasma$a612.116 | ||||||||
| 084 | 0#$afcps [Canadian PS8000 Classification] |
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| 153 | ##$aPS8005$hCanadian literature$hGeneral$jSocieties | ||||||||
| 253 | 2#$iSocieties devoted to literature in general are classed in$aPN21$cPN29 | ||||||||
| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
||||||||
| 153 | ##$a745.674$hThe arts. Fine and decorative arts$hDrawing and decorative arts$hDecorative arts$hCalligraphy, heraldic design, illumination$hIllumination of manuscripts and books$jIlluminated manuscripts and books by language | ||||||||
| 253 | 2#$iClass illuminated manuscripts and books in specific languages produced in specific countries and localities in$a745.67093$c745.67099 | ||||||||
| 084 | 0#$alcc [Library of Congress Classification] |
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| 153 | ##$zKF1$a7.5$c7.529$hTable of form divisions (20 nos.)$hStatutes. Regulations. Rules of practice$hFederal legislation$hRegulations. Rules of practice$jParticular regulations or rules of practice (or groups of regulations or rules adopted as a whole) | ||||||||
| 253 |
0#$iFor rules of
practice before a separately classed agency, see the
issuing agency [The example is for a table record, as identified in 008/06 (Kind of record), code b (Table).] |
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| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$a003$hComputer science, information, general works$jSystems | ||||||||
| 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 [A Complex See Reference must include all of the instructions needed for applying the table to the number.] |
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| 084 |
0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$z1$a089$hStandard subdivisions$hHistory and description with respect to kinds of persons$jEthnic and national groups | ||||||||
| 253 |
2#$iClass persons
treatment (e.g., biography) of members of a specific
ethnic or national group
in$z1$a0923$iclass
treatment with respect to specific ethnic and national
groups in places where they predominate
in$z1$a091$c099.
$iClass treatment with respect to
miscellaneous specific kinds of persons of a specific
ethnic or national group with the kind of person
in$z1$a081$c088,
$ie.g., Chinese
children$z1$a083 [The reference note is too complex to be included in field 453 (Invalid Number Tracing) or field 553 (Valid Number Tracing).] |
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