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Thun, H.-P.: "At your fingertip"? : Auskunfts- und Informationsdienst bei uns noch Entwicklungsland (1970)
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- Source
- Bücherei und Bildung. 22(1970), S.63-71
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Cremer, M.: Öffentliche Bücherei - ein Informationszentrum? (1970)
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