Escher, H.: ¬Der Schlagwortkatalog der Stadtbibliothek Zürich (1890) (1937)
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- Source
- Ausgewählte bibliothekswissenschaftliche Aufsätze von Dr. Hermann Escher: zum 80. Geburtstag des Verfassers hrsg. von der Zentralbibliothek Zürich und der Vereinigung Schweizerischer Bibliothekare
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