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060  National Library of Medicine Call Number (R)

Input Standards

Required if applicable/Optional
1st Indicator  Existence in NLM collection
blank character No information provided
0 Item is in NLM
1 Item is not in NLM
2nd Indicator  Source of call number
blank character No information provided
0 Assigned by NLM
4 Assigned by agency other than NLM
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
‡a Classification number (R) Mandatory/Mandatory
‡b Item number (NR) Optional/Optional

Definition

Call numbers or class numbers based on the National Library of Medicine (NLM) Classification schedules and the Library of Congress (LC) Classification schedules.

If you assign a NLM classification number according to the NLM class schedules, use field 060 with first indicator value blank or 1 and second indicator value 4 or field 096, although field 060 is preferred. If the classification portion of your number does not conform to the NLM class schedules, use field 099.

Guidelines

 
NLM and LC copy

Enter spaces as shown on NLM or LC copy. For classes W1-9, no space intervenes between class letters and class numbers. For other classes, NLM uses a space between class letters and class numbers. LC does not use a space.

LC or NLM cataloging copy may include two NLM call numbers, the second in brackets following the first. Use field 060 subfield ‡a for the first NLM call number. Use a second subfield ‡a for the second NLM call number. Do not enter the brackets.

Cataloging copy Enter
W1 P658 no.6 1977 [WM 420 P971p 1973-75] 060 00 W1 P658 no.6 1977 ‡a WM 420 P971p 1973-75

On some cataloging copy, the NLM call number follows the NLM subject headings. Use the appropriate fields for call numbers and subject headings.

For most nineteenth century titles, the class number assigned by NLM has letters only. Enter such numbers as follows:

060 0 0 WBA G816p 1897

1st indicator

Existence in NLM collection. Indicates whether the item is in NLM's collections.

 
blank character

No information provided

 
0

Item is in NLM. From NLM copy only.

 
1

Item is not in NLM

2nd indicator

Source of call number. The source of the call number

 
blank character

No information provided. Obsolete. Do not use.

 
0

Assigned by NLM. From NLM copy only.

 
4

Assigned by agency other than NLM

Subfields

 
‡a Classification number

Enter the complete NLM call number or only the NLM class number.

060 0 0 1993 A0148
060 0 0 ZW 76 H631h 1975
‡b Item number

You may use subfield ‡a to enter the entire call number. NLM does not use subfield ‡b.

060   4 WK 550 ǂb L425g 1961

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 060.

This page last revised: September 2, 2015