Library of Congress >> MARC >> Bibliographic >> 01X-09X  >> 060

060 - National Library of Medicine Call Number (R)


MARC 21 Bibliographic - full
May 2017

First Indicator Second Indicator
Existence in NLM collection
# - No information provided
0 - Item is in NLM
1 - Item is not in NLM

Source of call number
0 - Assigned by NLM
4 - Assigned by agency other than NLM


Subfield Codes
  • $a - Classification number (R)
  • $b - Item number (NR)
  • $0 - Authority record control number or standard number (R)
  • $8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Either a complete National Library of Medicine (NLM) call number or classification number assigned by either the National Library of Medicine or by other agencies using the National Library of Medicine Classification. The second indicator values distinguish between content actually assigned by the National Library of Medicine and content assigned by an organization other than NLM.

Classification or call number is taken from National Library of Medicine Classification schedules QS-QZ and W or from Library of Congress Classification schedules as used by NLM for peripheral and related topics.

It is NLM practice to assign accession numbers to print monographs that receive limited cataloging, and since January 1994 to most print monographs receiving full-level cataloging.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

First Indicator - Existence in NLM collection

Whether or not the item is contained in the NLM collection.

# - No information provided

Used for call numbers assigned by an organization other than NLM.

060 #4$aW1$bJO706M
0 - Item is in NLM
1 - Item is not in NLM

Item is not in the NLM collection, or it is not shelved under that number.

060 10$aWA 540 AA1$bB8p 1972
060 14$aWF 102$bN972a 1969

Second Indicator - Source of call number

Whether the source of the call number is the National Library of Medicine or another agency.

0 - Assigned by NLM
4 - Assigned by agency other than NLM

SUBFIELD CODES

$a - Classification number

Either the classification number portion of the call number or an accession number. Source of the classification number is National Library of Medicine Classification.

060 00$aW 22 DC2.1$bB8M
060 00$aZ 675.M4$bH477

Current practice is to record alternative call numbers in separate occurrences of field 060.

060 00$aW1$bBE357 Bd. 1 1978
060 10$aWW 166$bM43k 1973
060 00$aW3$bNU36 no. 28 1993
060 10$aTP 248.65.P76$bM618a 1993
060 00$a1993 A0148
060 10$aW 84 AA1$bI4827a 1993

In older records, subfield $a was repeated when alternate call numbers were recorded. In this case, the alternate class number was recorded following the last subfield of the call number. If the alternate class number also included an item number, the item number was included in the same subfield $a as the alternate class number; it was not separately subfielded.

060 #4$aW1$bDE111AL v.4 pt.A 1990$aTP 248.2 D293b 1990
060 00$aKK1110$aWD 320

$b - Item number

Item number portion of the NLM call number.

NLM uses the Cutter-Sanborn Three-Figure Author Table to create item numbers and a special numbering scheme in classes W1 and W3 to create item numbers.

Special scheme of numbering used in classes W1 and W3 is described in the National Library of Medicine Classification. This subfield may also contain a copy number.

060 00$aW1$bRI217

Accession numbers do not contain a separate item portion, thus subfield $b is not used. The alternative numbers assigned to items receiving less-than-full cataloging also lack an item number.

060 00$aEE7766
060 10$aQV 350

$0 - Authority record control number or standard number

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.


INPUT CONVENTIONS

Punctuation - Field 060 does not end with a period unless the period is part of the data in the final subfield.

Spacing - Spaces that are desired in the call number must be input.

Display Constants

[DNLM: ... ]
/ [space-slash-space]

Display constant DNLM: and the Arabic numeral that precede an NLM call number, and the brackets that surround the entire statement are not carried in the MARC record. They may be system generated as a display constant associated with the field tag.

Space-slash-space that is used to separate alternate NLM call numbers when they are recorded in the same field (applies to older records) is not carried in the machine-readable record. It may be system generated as a display constant associated with the presence of repeated $a subfields.

 
Content designated field:
060 00$aW1$bBE 357 Bd. 1 1973$aWW 166 M43k 1973
Display example:
1. [DNLM: W1 BE 357 Bd. 1 1973 / WW 166 M43k 1973]

CONTENT DESIGNATOR HISTORY

Indicator 2 - Series call number (SE) [OBSOLETE]

In the serials specifications, the use of the second indicator position to indicate the type of series was made obsolete in 1976. The values were: 0 (No series involved), 1 (Main series), 2 (Subseries), 3 (Sub-subseries).

Indicator 2 - Source of call number
# - No information provided [OBSOLETE]

Second indicator was defined in 1982. Prior to that change, 060 was an agency-assigned field and contained only call numbers assigned by the National Library of Medicine. NLM records created before the definition of this indicator may contain a blank (#) meaning undefined in the second indicator position.

$a - Classification number

Prior to January 1994, subfield $a was repeated to record alternative call numbers. Beginning in 1994, alternative call numbers should be recorded in separate occurrences of field 060.

$0 - Authority record control number or standard number [NEW, 2017]

Library of Congress >> MARC >> Bibliographic >> 01X-09X  >> 060
(05/17/2017)
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