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Cataloging: Fundamentals of the NLM® Classification

Page 4 of 6

MARC Coding

  • All call numbers used by NLM are recorded in the 060 field with a 2nd indicator of 0 (zero) including LC class numbers used by NLM

     

    • Accession numbers are recorded in $a
      • Example
        • 060 00 $a 2009 A-684

           

    • Classification numbers (including Table G notation and topical and geographic LCC breakdowns) are recorded in $a and the remaining parts of the call number are recorded in $b

       

    • Unlike LCC practice, the information recorded in $b is not preceded by a period
      • Examples:
        • 060 10 $a WK 252 $b T412s 2005
        • 060 10 $a BF 81 $b H6731 2009
        • 060 00 $a W2 KA8 $b N31
        • 060 10 $a HV 2476.5.B75 $b B828d 1995
        • 060 00 $a WP 140 $b DVD no.1 2005

           

  • 1st indicator of 0 (zero) means that the item is shelved at NLM at that number
    • Examples:
      • 060 00 $a 2007 L-634 (accession number)
      • 060 00 $a W1 $b MO57 v.26 1984 (analyzed serial)
      • 060 00 $a WP 815 $b DVD no. 2004 (AV shelved in Reference)

         

  • 1st indicator of 1 means that the item is not shelved at NLM at that number
    • Examples:
      • 060 10 $a WK 700 $b N532c 1984 (full alternate call number)
      • 060 10 $a WC 100 (limited alternate call number)

         

  • Libraries that use the NLM Classification may record their call numbers in an 060 field with a 1st indicator of blank and 2nd indicator of 4 to indicate not assigned by NLM

     

  • Libraries cataloging in OCLC may use the 096 field to record their NLM call number for original cataloging or if they need to change or adjust the number provided in the 060 field

     



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