Library of Congress >> MARC >> Classification >> 76X >> 766

766 - Secondary Table Information (R)

MARC 21 Classification - Full
October 2005

First Indicator
# - Undefined

Second Indicator
# - Undefined

Subfield Codes
$a - Secondary table applicability (NR)
$y - Type of division (R)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)


Classification records where a secondary table applies or where the secondary table does not apply. Also provides a method of characterizing the entities in field 153 (Classification number) subfield $j (Caption) in the primary table so that a system can automatically link to the appropriate secondary table without first forcing the user to select from a menu.




$a - Secondary table applicability
Code (e.g., code “a” for applicable; code “n” for not applicable) indicating whether or not a secondary table is applicable for breaking down the number or span of numbers in field 153 (Classification number).
$y - Type of division
Type of division to which the entity in field 153 (Classification number) subfield $j (Caption) belongs. The text matches that of the corresponding subfield $y (Type of division) in field 763 (Internal subarrangement or add table entry) in the schedule record with which the secondary table is used.
$6 - Linkage
See the description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See the description of this subfield in Appendix A: Control Subfields.


Example 1

Schedule record:
153 ##$aHD6091$cHD6220.9$hIndustries. Land use. Labor$hLabor. Work. Working class $hClasses of labor$hWomen$jBy region or country
762 ##$zH5
763 08$81.1
763 08$81.2$zHD6091/1$y4 number countries
763 10$81.3$zHD6091/2$y1 number countries
763 10$81.4$zHD6091/3$y1 number regions

Table record

(This record for Argentina has a 4 number span that may be applied)
153 ##$zH5$a27$c30$hTables of geographical divisions$hLatin America$hSouth America $jArgentina
766 ##$aa$y4 number countries

Example 2

Schedule record
153 ##$aHB2171$cHB2368$hEconomic theory. Demography$hDemography. Population. Vital events$hPopulation geography. Migration$hUrban population$jBy region or country
762 ##$zH2
763 08$zHB2171/1$y2 number countries
763 08$zHB2171/2$y1 number countries
763 10$zHB2171/3$y1 number regions

Table record

(In this case a table is applicable for most numbers in the span under 'By region or country' (above), but not those for the United States, since they are explicitly encoded in separate records)
153 ##$zH2$a11$hTables of geographical divisions$hNorth America$hUnited States $jSouthern States
766 ##$an

(03/15/2008) Contact Us