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LCCN 89-456

  • no prefix
  • assigned before 1/1/2001

89000456

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  • Make sure your LCCN is 8 characters long:
    • Two numbers (representing a year) followed by six serial numbers
    • Add leading zeros if there are fewer than six serial numbers

LCCN 2001-1114

  • no prefix
  • assigned after 12/31/2000

2001001114

  • Omit spaces and hyphens
  • Make sure your LCCN is 10 characters long:
    • Four numbers (representing a year) followed by six serial numbers
    • Add leading zeros if there are fewer than six serial numbers

LCCN gm 71-2450
LCCN n 79-18774
LCCN sh 85026371

  • 1-3 character alphabetic prefix
  • assigned before 1/1/2001

gm71002450
n79018774
sh85026371

  • Omit spaces and hyphens
  • Make sure your LCCN is 9-11 characters long:
    • Two numbers (representing a year) followed by six serial numbers
    • Add leading zeros if there are fewer than six serial numbers

LCCN sn2006058112
LCCN n 2011033569
LCCN sh2006006990

  • 1-2 character alphabetic prefix
  • assigned before 12/31/2000

sn2006058112
n2011033569
sh2006006990

  • Omit spaces and hyphens
  • Make sure your LCCN is 11-12 characters long:
    • Four numbers (representing a year) followed by six serial numbers
    • Add leading zeros if there are fewer than six serial numbers