Exercises in the 20th edition of the Dewey decimal classification

Eitemau Tebyg

• Classifying with dewey decimal classification ( editions 19 and 20) /
  Cyhoeddwyd: (2002)
• Exercises in the 20th edition of the Dewey decimal classification /
  gan: Comaromi, John P.
  Cyhoeddwyd: (1990)
• Dewey Decimal Classification and Relative Index
  gan: Dewey, Melvil
  Cyhoeddwyd: (1979)
• Dewey Decimal Classification and Relative Index
  gan: Dewey, Melvil
  Cyhoeddwyd: (1971)
• Dewey Decimal Classification and Relative Index
  gan: Dewey, Melvil
  Cyhoeddwyd: (1971)