Jahrmann, W.: Auskunft und Beratung in der Öffentlichen Bücherei (1964)
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- Source
- Bücherei und Bildung. 16(1964), S.61-66
Jahrmann, W.: Informationsarbeit in der öffentlichen Bibliothek : Erfahrungen mit Studenten und Oberstufenschülern (1969)
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- Source
- BuB. 21(1969), S.266-272
