015 National Bibliography Number (R) (Variable Data Field)
Field 015 contains one or more bibliography entry numbers for cataloging information that is derived from a national bibliography.
When cataloging information is derived from an entry in a foreign national bibliography, the number of the entry is given in the record. A work may have more than one number from a single national bibliography or may have numbers from more than one national bibliography. Multiple numbers are recorded in repeating 015 fields.
The National level record requirement for this field is Optional.
Field 015 is repeatable.
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:
Position |
Description |
NLR |
MLR |
Repeatability |
Field 015 |
National Bibliography Number |
O |
O |
R |
Indicator: |
|
|
|
|
First |
Undefined; contains a blank |
M |
|
|
Second |
Undefined; contains a blank |
M |
|
|
|
|
|
|
|
Subfield code: |
|
|
|
|
$a |
M |
O |
R |
|
$q |
|
|
R |
|
$z |
A |
O |
R |
|
$2 |
|
|
NR |
|
$6 |
A |
O |
NR |
|
$8 |
O |
O |
R |
In 2001, field
015 was changed from Not repeatable (NR) to Repeatable (R) to allow
for multiple bibliography numbers.
Subfield
$q - Qualifying
information [new,
2013]: Prior to the definition
of subfield $q in 2013, qualifying
information was contained in subfield $a (National
bibliography number).
Subfield
$z - Canceled
or invalid national bibliography number [new, 2007]
Subfield $2
- Source
[new, 2001]: Subfield $2
was defined to contain the source of the National Bibliography Number.
Related MARC fields or documents:
880 Alternate Graphic Representation
RDA in MARC Bibliographic Data
Source Codes for Vocabularies, Rules, and Schemes:
National Bibliography Number Source Codes
See also: