| First Indicator | Second Indicator |
|---|---|
| Number source # - Source specified in subfield $2 0 - Superintendent of Documents Classification System 1 - Government of Canada Publications: Outline of Classification |
Undefined # - Undefined |
| Subfield Codes | |
|---|---|
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Single government document classification number, number stem, or a number span associated with a 1XX heading in an established heading record. The classification number(s) may be qualified by explanatory information when the heading is represented by more than one number in the same classification scheme.
Each classification number or number span associated with a heading is contained in a separate field 087. Government document classification number is an agency-assigned data element. It is assigned by designated agencies in government classification programs.
First Indicator - Number source
Source of the government document classification number.
Number is taken from a source other than that specified by one of the other defined indicator values and for which an identifying code is given in subfield $2.
| 110 | 1#$aOregon.$bDept. of Geology and Mineral Industries | ||||||||
| 087 | ##$aGM$2ordocs | ||||||||
Superintendent of Documents classification numbers are assigned only by the U.S. Government Printing Office (GPO). They may be input by other institutions if verified in the Monthly Catalog of United States Government Publications or the Daily Depository Shipping List.
| 110 | 1#$aUnited States.$bCongress.$bHouse.$bSelect Committee on Narcotics Abuse and Control | ||||||||
| 087 | 0#$aY 4.N 16 | ||||||||
Canadian government printing office assigns classification numbers to denote special series or publications of a given department.
| 110 | 1#$aCanada.$bFisheries Development and Marketing | ||||||||
| 087 | 1#$aFs-85 | ||||||||
Second Indicator - Undefined
Undefined and contains a blank (#).
$a - Classification number element-Single number of beginning number of span
Single class number or the first number in a number span.
| 110 | 1#$aOregon.$bWater Resources Dept. | ||||||||
| 087 | ##$aWR$c1987-$2ordocs | ||||||||
| 110 | 2#$aNational Institute on Drug Abuse | ||||||||
| 087 | 0#$aHE 20.8216 | ||||||||
| 110 | 1#$aNew York (State).$bBoard of Statutory Consolidation.$bSubcommittee on a Plan for the Simplification of the Civil Practice | ||||||||
| 087 | ##$aSTA 993$2nydocs | ||||||||
$b - Classification number element-Ending number of span
Ending number of number span when the beginning number of the span is contained in subfield $a.
| 110 | 1#$aCanada.$bDept. of Fisheries and Oceans.$bCommunications Branch | ||||||||
| 087 | 1#$aFs-20$bFs-29 | ||||||||
$c - Explanatory information
Descriptive information that qualifies the topic of the class number. Normally used to differentiate between two or more class numbers associated with the heading.
| 110 | 1#$aOregon.$bBoard of Geologist Examiners | ||||||||
| 087 | ##$aY/G29/2$c1987-$2ordocs | ||||||||
| 087 | ##$aC/G29/2$c1977-1987$2ordocs | ||||||||
| 110 | 10$aOregon.$bOccupational Safety Health Division | ||||||||
| 087 | ##$aCon/Oc1$c1993-$2ordocs | ||||||||
| 087 | ##$aIn/Oc1$c1989-1993$2ordocs | ||||||||
$0 - Authority record control number or standard number
See description of this subfield in Appendix A: Control Subfields.
$1 - Real World Object URI
See description of this subfield in Appendix A: Control Subfields.
$2 - Number source
MARC code that identifies the government document classification system or scheme when the first indicator position contains value blank (#). Source of the MARC code is Classification Scheme Source Codes that is maintained by the Library of Congress.
| 087 | ##$aHeu/G74$2ordocs | ||||||||
$6 - Linkage
See description of this subfield in Appendix A: Control Subfields.
$8 - Field link and sequence number
See description of this subfield in Appendix A: Control Subfields.
Punctuation - Field 087 does not end with a period unless the field ends with an abbreviation, initial/letter, or other data that ends with a period.
Superintendent of Documents Classification numbers - One space is recorded between letters and numbers unless there is intervening punctuation.
Government of Canada Publications: Outline of Classification numbers - No spaces are recorded in the number.
Display Constants
| - | [hyphen associated with the content of subfield $b] |
| ( ... ) | [parentheses associated with the content of subfield $c] |
Hyphen between the two class numbers in a number span in subfields $a and $b and the parentheses that may enclose the explanatory term in subfield $c are not carried in the MARC record. They may be system generated as display constants associated with the content of subfields $b and $c, respectively.
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Content designated field:
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| 087 | ##$aC/G29/2$c1977-1987$2ordocs | ||||||||
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Display example: C/G29/2 (1977-1987)
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Content of subfield $2 may be used to generate a display constant that identifies the source of the number.