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Pettee, J.: Subject headings: the history and theory of the alphabetical subject approach to books (1946) 0.04

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Mann, M.: Introduction to cataloging and the classification of books (1943) 0.04

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Harnack, A. von: ¬Die Auskunftserteilung als bibliothekarische Aufgabe (1940) 0.02

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Source: Zentralblatt für Bibliothekswesen. 57(1940), S.16-22

Sveistrup, H.: ¬Der neue Realkatalog der SUB Hamburg (1947) 0.01

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Source: Probleme des Wiederaufbaus im wissenschaftlichen Bibliothekswesen: aus d. Verhandlungen des 1. Bibliothekartagung der britischen Zone in Hamburg vom 22.-24.10.1946

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