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- authors%3a%22Ikas%2c W.-v.%22 2
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Jahrmann, W.: Auskunft und Beratung in der Öffentlichen Bücherei (1964)
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Jahrmann, W.: Informationsarbeit in der öffentlichen Bibliothek : Erfahrungen mit Studenten und Oberstufenschülern (1969)
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