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Beall, J.: Editing the Dewey Decimal Classification online : the evolution of the DDC database (1992)
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Sweeney, R.: Dewey Decimal Classification : edition 20 (1989)
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Peritz, B.C.: Dewey Decimal Classification, 20th ed. (1991)
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Berman, S.: DDC 20 : the scam continues (1989)
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Duncan, D.: IFLA Core Programme for Universal Bibliographic Control and International MARC (UBCIM) and Division of Bibliographic Control reports on activities 1994-1995 : Section on Classification and Indexing (1996)
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Herla, M.K.; Baradol, A.K.: Comparative study of physics schedules in the 7th edition of Colon Classification and the 20th edition of Dewey Decimal Classification (1997)
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