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Bliss, H.E.: ¬A bibliographic classification (1940-53)
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Zipf, G.K.: Human behavior and the principle of least effort (1949)
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Hutchins, M.: Introduction to reference work (1944)
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Osborn, A.: ¬The crisis in cataloging (1941)
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Shannon, C.E.: ¬A mathematical theory of communication : pt.1.2 (1948)
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Thom, I.W.: ¬The divided catalog in college and university libraries (1949)
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Broadfield, A.: ¬The philosophy of classification (1946)
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Pressey, J.C.: ¬The Decimal Classification Section at the Library of Congress (1941)
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Pettee, J.: Subject headings: the history and theory of the alphabetical subject approach to books (1946)
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Runge, S.: Some recent developments in subject cataloging in Germany (1941)
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Radford, W.: Cataloges, codes and bibliographical control (1949)
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Weaver, W.: ¬The mathematics of communication (1949)
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Mann, M.: Introduction to cataloging and the classification of books (1943)
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Cunningham, E.R.: Classification for medical literature (1946)
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Ranganathan, S.R.: Self-perpetuating scheme of classification (1949)
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Orman, O.C.: Law library classification (1941)
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Savage, E.A.: Manual of book classification and display (1947)
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Pitts, W.; McCulloch, W.S.: How we know universals : the perception of auditory and visual frames (1947)
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Boisen, H. L.: ¬A venture in reclassification (1944)
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Ireland, N. O.: Cooperative Indexing : a postwar program today (1944)
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