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Grinberg, M.: Fees for reference services in university libraries in Israel (1997)
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ALA / Subcommittee on Subject Relationships/Reference Structures: Final Report to the ALCTS/CCS Subject Analysis Committee (1997)
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Shirley, B.: State library survey online search services (1993)
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Nofsinger, M.M.; Bosch, A.W.: Roles of the head of reference : from the 1990s to the 21st century (1994)
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Hull, P.: Videotex: a new tool for librarians (1994)
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