| First Indicator Source of classification number 0 - Schedule 1 - Table |
Second Indicator Undefined # - Undefined |
| Subfield Codes |
|
| $a - Classification number element--single number or beginning number of span (R) $c - Classification number element--ending number of span (R) $h - Caption hierarchy (R) $i - Reference instruction phrase (NR) $j - Caption (NR) $k - Summary number span caption hierarchy (R) $t - Topic (NR) |
$w - Control subfield (NR) /0 - Special relationship /1 - Hierarchical relationship /2 - Reference display /3 - History reference $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) |
Tracing for a cross reference from an invalid classification number.
Used for a valid or partially valid classification number (008/08, Classification validity, code a, b or c) record to trace a reference from an invalid to a valid number. When a 453 number tracing field cannot adequately convey necessary information about an invalid classification number, a separate record may be created for the invalid number (008/08 (Classification validity), code d) containing field 253 (Complex See Reference). In such instances, a 453 number tracing field may also be included in the valid or partially valid classification number record in the record for the valid number if desired. A tracing for a valid classification number that is invalid only for a particular topic is contained in field 553 (Valid Number Tracing). The content designators used in the classification number and caption portions of field 453 are the same as those defined for fields 153 (Classification Number) and 553 (Valid Number Tracing).
Guidelines for applying these content designators, including indicators, scheme-specific conventions and input conventions are given in the X53 Classification Numbers-General Information section. The guidelines for applying tracing subfield codes $i (Reference instruction phrase), $t (Topic) and $w (Control subfield), are given in the Tracing and Reference Fields-General Information section.
| 084 | 0#$alcc [Library of Congress Classification] |
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| 153 | ##$aHA29$cHA32$hSocial science (General)$hStatistics$jTheory and method of social science statistics | ||||||||
| 453 | 0#$wj$aH61.5$hSocial Science (General)$hTheory. Method. Relation to other subjects$jStatistical methods | ||||||||
| 084 | 0#$alcc [Library of Congress Classification] |
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| 153 | ##$aNA2795$hArchitecture$jColor in architecture. Polychromy (General) | ||||||||
| 453 | 0#$wj$aNA3640.52$hArchitecture$hArchitectural decoration$jPainted decoration (Color use) | ||||||||
| 084 | 0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$a621.388337$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hElectrical, magnetic, optical, communications, computer engineering; electronics, lighting$hElectronics, communications engineering$kSpecific communications systems$hTelevision$hComponents and devices$hVideo recorders and video recordings$jMaintenance and repair of video recorders and video recordings | ||||||||
| 453 | 0#$wmnna$a621.3883320288$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hElectrical, magnetic, optical, communications, computer engineering; electronics, lighting$hElectronics, communications engineering$kSpecific communications systems$hTelevision$hComponents and devices$hVideorecorders and videorecordings$hMiscellany$hAuxiliary techniques and procedures; apparatus, equipment, materials$jMaintenance and repair | ||||||||
| 084 | 0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$z4$a11$hSubdivisions of Individual Languages and Language Families$kDescription and analysis of the standard form of the language$hWriting systems, phonology, phonetics of the standard form of the language$jWriting systems | ||||||||
| 453 | 1#$wm$z4$a0148$hSubdivisions of Individual Languages and Language Families$hPhilosophy and theory$hLanguage and communication$jAbbreviations and symbols$tabbreviations and symbols as part of writing systems | ||||||||
| 084 | 0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$a133.3$hSpecific topics in parapsychology and occultism$hParapsychology and occultism$hPhilosophy and theory$jDivinatory arts | ||||||||
| 453 | 0#$wm$a130.112$h##$a133.3$hPhilosophy, parapsychology and occultism, psychology$hParapsychology and occultism$hPhilosophy and theory$hSystems$jForecasting and forecasts$tcomprehensive works on parapsychological and occult forecasting and forecasts | ||||||||
| 084 | 0#$addc$c22 [Dewey Decimal Classification] |
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| 153 | ##$wm$a130.112$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$a133.5 [This example illustrates a record that uses a 453 tracing for the invalid number and a reciprocal invalid record that uses a 253 complex reference field.] |
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| 453 | 00$wj$aHD1501.2$hIndustries. Land use. Labor$hAgricultural economics$jLandlord | ||||||||
| 453 | 1#$wanna$z2$a71335$hGeographic Areas, Historical Periods, Persons$kSpecific continents, countries, localities; extraterrestrial worlds$kThe modern world; extraterrestrial worlds$hNorth America$hCanada$hOntario$kSouthern Ontario$hLake Erie region$jSt. Thomas | ||||||||
| 453 | 0#$wanna$a652.5$hTechnology (Applied sciences)$hManagement and auxiliary sciences$kAuxiliary services$hProcesses of written communication$jWord processing | ||||||||
| (09/01/2008) | Contact Us |