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A practical text-and-workbook designed to teach every aspect of the Dewey Decimal Classification (DDC) system.

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245: $a: Learn Dewey Decimal Classification
245: $b:
082: $a:
100: $a: Mary Mortimer
650: $a: Library & Information Science
250: $a: 22nd First North American Edition
440: $v:
250: $b: TotalRecall Publications
250: $c: 2007
020: $a: 978‑1590958049
300: $a: 136