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OCLC Support

NLM Class Number

NLM = National Library of Medicine (U.S.)

Also called Call Number in FirstSearch.

Number (lm:)
  Connexion FirstSearch WorldShare and WorldCat Discovery
Label lm:
Search? Yes Yes Yes
Browse? Yes Yes No
Examples lm:hq1381
Fields/Subfields
  • 060 a
  • 096 a
Qualifier Index? No
Notes
  • Indexes subfield a only
  • Enter all numbers and letters
  • Include periods
  • Omit all other punctuation
  • Omit spaces
  • Called Call Number
  • Indexes subfield a only
  • Enter all numbers and letters
  • Include periods
  • Omit all other punctuation
  • Omit spaces
  • Indexes subfield a only
  • Enter all numbers and letters
  • Include periods
  • Omit all other punctuation
  • Omit spaces
Phrase (lm=)
  Connexion FirstSearch WorldShare and WorldCat Discovery
Label lm=
Search? Yes Yes Yes
Browse? Yes Yes No
Examples lm=hq 1381 c524w 1976
Fields/Subfields
  • 060 a b
  • 096 a b
  • 695 b (if indicator 2 = 2)
Qualifier Index? No
Notes
  • Indexes subfields a and b together
  • Enter all numbers and letters
  • Include periods
  • Omit all other punctuation
  • Omit spaces
  • Include spaces

 

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