Ockenfeld, M.: Klassische Informationsdienste (1990)
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- Source
- Grundlagen der praktischen Information und Dokumentation. 3. Aufl. Hrsg.: M. Buder u.a
Ockenfeld, M.: Klassische Informationsdienste (1997)
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- Source
- Grundlagen der praktischen Information und Dokumentation: ein Handbuch zur Einführung in die fachliche Informationsarbeit. 4. Aufl. Hrsg.: M. Buder u.a
