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Duckett, R.J.; Walker, P.; Donnelly, C.: Know it all, find it fast : an A-Z source guide for the enquiry desk (2008)
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Naumann, M. (Bearb.): Diderots Enzyklopädie : eine Auswahl (2001)
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- Date
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Lipow, A.G.: ¬The virtual reference librarian's handbook (2003)
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