016 - National Bibliographic Agency Control Number (R)
MARC 21 Classification - Full
October 2004
First Indicator
National bibliographic agency
# - Library and Archives Canada
7 - Source specified in subfield $2
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Second Indicator
Undefined
# - Undefined
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Subfield Codes
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$a - Record control number (NR)
$z - Canceled or invalid control number (R)
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$2 - Source (NR)
$8 - Field link and sequence number (R)
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FIELD DEFINITION AND SCOPE
Unique numbers that have been assigned to a record by a national bibliographic agency
other than the Library of Congress.
Library of Congress control numbers are recorded in field 010. The control number may
also appear in field 001 (Control Number) in records distributed by the same national
agency. An organization using the record may remove the national bibliographic agency
control number from field 001 and use field 001 for its own system control number. This
number is a record control number used in a national bibliographic agency system, rather
than a number used for an entry in a national bibliography.
A record may contain field 016 with a canceled or invalid control number of a
previously-distributed record. A record may be canceled because it is a duplicate record
for the same classification number.
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
First Indicator - National bibliographic agency Either identifies a specific national bibliographic agency as the source of the
control number, or refers to a code subfield $2 (Source).
# - Library and Archives Canada Library and Archives Canada (LAC) is the source of the national bibliographic
agency control number.
7 - Source specified in subfield $2 Used when the source of the control number is indicated by a code in subfield
$2.
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| 016 |
7#$a94.763966.7$2[National bibliographic agency
identifier]
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Second Indicator - Undefined Undefined and contains a blank (#).
■ SUBFIELD CODES
$a - Record control number Valid record control number assigned by a national bibliographic agency.
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| 016 |
7#$agn0349684n$2[National bibliographic agency
identifier]
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$z - Canceled or invalid control number Canceled or invalid control number assigned by a national bibliographic
agency.
$2 - Source MARC code or the name of the organization that identifies the national
bibliographic agency that was the source of the record control number. Code from:
MARC Code List for
Organizations.
Used only when the second indicator position contains value 7 (Source specified in
subfield $2).
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| 016 |
7#$aMC967544$z0006342114$2[National bibliographic agency
identifier]
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$8 - Field link and sequence number
CONTENT DESIGNATOR HISTORY
Field 016 - National Library of Canada Record Control Number [REDEFINED, 1997] [CAN/MARC only]
Both indicator positions were undefined. The defined subfield codes were
$a (NLC record control number) and $z (Canceled/invalid NLC
control number).