Katz, Wiliiam A.
Introduction to reference work : volume II, reference services and reference processes / William A. Katz
McGraw-Hill, 1992
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Katz, Wiliiam A.
Introduction to reference work : volume I, basic information sources / William A. Katz
McGraw-Hill, 1992
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Katz, William A., 1924-
Introduction to reference work
McGraw-Hill, 2002
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Bopp, Richard E.
Reference and information services : an introduction
Libraries Unlimited, 2001
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Owen, Tim Buckley, 1948-
Success at the enquiry desk: successful enquiry answering - every time
Facet Publishing, 2006
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