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Gahl, R.: Telefon und Telex als Hilfsmittel des Informationsdienstes in Öffentlichen Bibliotheken : Analyse in- und ausländischer Fachbeiträge (1976)
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Langen, D.: Telefon und Telex als Hilfsmittel des Informationsdienstes in Öffentlichen Bibliotheken : Analyse in- und ausländischer Fachbeiträge (1976)
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Terjung, H.: Telefon und Telex als Hilfsmittel des Informationsdienstes in Öffentlichen Bibliotheken : Analyse in- und ausländischer Fachbeiträge (1976)
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Bunzel, A.: Organisation des Informationsdienstes : Darstellung der Hauptprobleme anhand in- und ausländischer Fachbeiträge sowie vergleichende Untersuchung in drei Öffentlichen Bibliotheken (1977)
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Schmidt, D.: Telefon und Telex als Hilfsmittel des Informationsdienstes in Öffentlichen Bibliotheken : Analyse in- uns ausländischer Fachbeiträge (1976)
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König, E.: Nationale und internationale Standards und Empfehlungen für den Informationsdienst : Bestandsaufnahme und Vergleich im Hinblick auf künftige Planungen und Konzeptionen für Öffentliche Bibliotheken in der Bundesrepublik Deutschland (1979)
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Striegel, A.: Kommunikationsbarrieren im Auskunftsdienst : Vorstellungen in der bibliothekarischen Fachliteratur und Empfehlungen für den Auskunftsdienst in Öffentlichen Bibliotheken (1979)
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Rudolph, K.: Bewertungsmethoden für den Auskunftsdienst : kritische Sichtung der Beiträge in der deutschen und englischen Fachliteratur sowie Vorschläge zur Vereinheitlichung der Erhebungsmethoden in Öffentlichen Bibliotheken der Bundesrepublik Deutschland (1975)
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