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  1. Walford's guide to reference material : Vol.1: Science and technology. 1993. - Vol.2: Social and historical sciences, philosophy and religion. 1994. - Vol.3: Generalia, language and literature, the arts. 1995 (1993-95) 9.58
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  2. ¬The reference sources handbook (1996) 9.58
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  3. Distinguished classics of reference publishing (1992) 9.58
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  4. Walford's guide to reference material : Vol.3: Generalia, language and literature, the arts (1998) 9.58
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  5. Katz, W.A.: Introduction to reference work : Vol.1: Basic information sources; vol.2: Reference services and reference processes (1992) 9.58
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  6. Walford's guide to reference material : Vol.1: Science and technology (1999) 9.58
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  7. Duckett, R.J.; Walker, P.; Donnelly, C.: Know it all, find it fast : an A-Z source guide for the enquiry desk (2008) 9.58
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