Library of Congress >> MARC >> Classification >> Tracings and References >> 553

553 - Valid Number Tracing (R)

MARC 21 Classification - Concise
2008

Tracing for a cross reference from one valid classification number to another valid classification number. If the classification number in the tracing is valid for some topics but invalid for others, this field is used, and the topics that refer to another number are specified in subfield $t (Topic).

Indicators
First - Source of classification number
0 - Schedule
1 - Table
Second - Undefined
# - Undefined
Subfield Codes
$a - Classification number--single number or beginning number of span (R)
$c - Classification number--ending number of span (R)
$h - Caption hierarchy (R)
Caption for each higher level of the caption hierarchy that precedes the caption for a classification number or span that is contained in subfield $j (Caption). The caption at the highest level is recorded in the first subfield $h. The caption at each successive level is recorded in sequence in separate subfields $h up to and including the level that precedes the caption contained in subfield $j. Captions for all levels of the hierarchy are recorded in the field. If the caption in subfield $j is the highest level of the hierarchy, subfield $h is not used. (However, some systems may wish to omit some levels of the hierarchy for display purposes.) A caption hierarchy for classification numbers in a summary number span in the Dewey Decimal Classification is contained in subfield $k (Summary number span caption hierarchy).
$i - Reference instruction phrase (NR)
See Tracings and References
$j - Caption (NR)
Lowest caption in the caption hierarchy for a classification number or span.
$k - Summary number span caption hierarchy (R)
Caption at a level higher than the last for a summary number span when the classification scheme identified in field 084 (Classification Scheme and Edition) is the Dewey Decimal Classification. Caption hierarchies for single classification numbers, defined numbers spans, or other types of summary number spans are contained in subfield $h. The last caption in the caption hierarchy for a summary number span in field 153 (008/07, Type of number, code c for summary number span) is recorded in subfield $j.
$t - Topic (NR)
Topic to which the tracing applies.
$w - Control subfield (NR)
See Tracings and References
/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)
See the description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number (R)
See the description of this subfield in Appendix A: Control Subfields.
Examples
553 0#$wjg$a347.4201$hSocial sciences$hLaw$kBranches of law; laws, regulations, cases; law of specific jurisdictions, areas, socioeconomic regions$kBranches of law$hCivil procedure and courts$hSpecific jurisdictions and areas$kModern world; extraterrestial worlds$hEurope. Western Europe$hCivil procedure and courts of England$jCourts$tCourts with specific kinds of jurisdiction
553 0#$wl$aQD701$cQD731$hChemistry$hPhysical and theoretical chemistry$jPhotochemistry$tPhotographic chemistry and chemicals
553 0#$wm$a540.72$hNatural sciences and mathematics$hChemistry and allied sciences$hEducation, research, related topics$jResearch; statistical methods$tlaboratories
553 1#$wjg$z2$a481$hGeographic Areas, Historical Periods, Persons$kSpecific continents, countries, localities; extraterrestrial worlds$kModern world; extraterrestrial worlds$hEurope. Western Europe$hScandinavia$jNorway$tdivisions of Norway
553 0#$wl$aNK5030$cNK5035$hDecorative arts. Applied arts. Decoration and ornament$hOther arts and art industries$jFairground art$tHandicraft of carousel horses
553 0#$wk$a541.24$hNatural sciences and mathematics$hChemistry and allied sciences$kChemistry$kGeneral topics in chemistry$hPhysical and theoretical chemistry$hTheoretical chemistry$jAtomic structure$tperiodic table
553 0#$wbnna$a787.2$hThe arts. Fine and decorative arts$hMusic$kInstruments and their music$kSpecific instruments and their music$hStringed instruments (Chordophones). Bowed string instruments$jViolins
553 1#$wj$zP-PZ1$a691$hTable for languages$hLexicography$hDictionaries$hOther special lists$jWord frequency lists$tResearch on word frequency, etc., in connection with machine translating
553 0#$wjg$a621.42$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hPrime movers and heat engineering$jStirling engines and air motors
553 0#$wk$a331.2162$hSocial sciences$hEconomics$kEconomics of labor, finance, land, energy$hLabor economics$hConditions of employment$hCompensation$hMethods of compensation$tTime payments
553 0#$wl$a331$hSocial sciences$hEconomics$kEconomics of labor, finance, land, energy$jLabor economics$tsociology of laboring classes
553 0#$wmh$a331.011$hSocial sciences$hEconomics$kEconomics of labor, finance, land, energy$hLabor economics$hPhilosophy and theory$jRights and position of labor$tsystems analysis applied to labor economics
553 0#$wjg$a621.69$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hBlowers, fans, pumps$kPumps$jPumps. Pneumatic pumps$thydraulic pumps
553 0#$wjg$a621.69$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hBlowers, fans, pumps$kPumps$jPumps. Pneumatic pumps$treciprocating pumps
553 0#$wjg$a621.69$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hBlowers, fans, pumps$kPumps$jPumps. Pneumatic pumps$trotary pumps
553 0#$wjg$a621.69$hTechnology (Applied sciences)$hEngineering and allied operations$hApplied physics$hBlowers, fans, pumps$kPumps$jPumps. Pneumatic pumps$tcentrifugal pumps
553 0#$wkh$a666.5$c666.6$hTechnology (Applied sciences)$hChemical engineering and related technologies$hCeramic and allied technologies$jSpecific types of pottery$tcomprehensive works
553 0#$wnga$a230$c280$hReligion$jChristianity
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(09/01/2008) 		Contact Us