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Haykin, D.J.: Book classification and the problem of change (1955)
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Spalding, C.S.: Library of Congress Book Catalogs : proposed expansion into current author and subject catalogs of american library resources (1954)
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Walker, R.S.: Problem child : some observations on fiction, with a sketch of a new system of classification (1958)
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- Source
- The librarian and the book world. 47(1958) No.2, S.21-28