Harnack, A. von: ¬Die Auskunftserteilung als bibliothekarische Aufgabe (1940)
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- Source
- Zentralblatt für Bibliothekswesen. 57(1940), S.16-22
Harnack, A. von: ¬Die Benutzung des Realkataloges des Staatsbibliothek Berlin (1942)
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- Source
- Zentralblatt für Bibliothekswesen. 59(1942), S.332-341