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Tenopir, C.; Ennis, L.: ¬The digital reference work of academic libraries (1998)
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- Source
- Online. 22(1998) no.4, S.22-28
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Katz, W.A.: Introduction to reference work : Vol.1: Basic information sources; vol.2: Reference services and reference processes (1992)
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- Isbn
- 0-07-033638-5 (v.1) - 0-07-033639-3 (v.2)
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Lipow, A.G.: ¬The virtual reference librarian's handbook (2003)
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- Date
- 22. 3.2004 14:46:50
