Library of Congress >> MARC >> Bibliographic >> 01X-09X >> 080

080 - Universal Decimal Classification Number (R)


MARC 21 Bibliographic - Full
October 2009

First Indicator
Type of edition
# - No information provided
0 - Full
1 - Abridged

Second Indicator
Undefined
# - Undefined


Subfield Codes
$a - Universal Decimal Classification number (NR)
$b - Item number (NR)
$x - Common auxiliary subdivision (R)
$2 - Edition identifier (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Number taken from the Universal Decimal Classification scheme.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

First Indicator - Type of edition
Whether the class number is from the full or the abridged edition of the classification schedules. The actual edition number is contained in subfield $2.
# - No information provided
0 - Full
Class number is from a full edition.
1 - Abridged
Class number is from an abridged edition.
Second Indicator - Undefined
Undefined and contains a blank (#).

SUBFIELD CODES

$a - Universal Decimal Classification number
080 ##$a001.81$2[edition information]
080 ##$a971.1/.2
080 ##$a631.321:631.411.3 $2[edition information]
$b - Item number
Item number portion of the UDC number. An item number is a Cutter, date, term, etc. added to a classification number to distinguish one item from any other assigned the same classification number.
$x - Common auxiliary subdivision
Number that qualifies the concept represented by the main UDC number.
Common auxiliary subdivisions, such as those for form (e.g., dictionaries), are attached to a main UDC number preceded or delimited by some kind of facet indicator. Examples of commonly used subdivision delimiters are parentheses, brackets, an apostrophe, or a hyphen.
080 ##$a821.113.1$x(494) $2[edition information]
080 ##$a94$x(474) $x"19"$x(075)$2[edition information]
$2 - Edition identifier
Edition number, date, or other textual designation of the edition of UDC used to compose the classification number.
080 ##$a82:111.852 $21993
080 ##$a821.113.4-14 $21998
$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.

CONTENT DESIGNATOR HISTORY

Indicator 1 - Type of edition
# - No information provided [NEW, 2009]
0 - Full [NEW, 2009]
1 - Abridged [NEW, 2009]
Prior to 2009, indicator 1 was undefined.

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