Cassel, Kay Ann, author
Reference and information services in the 21st century : an introduction
Neal-Schuman , 2006
Buku Teks
Katz, Wiliiam A.
Introduction to reference work : volume II, reference services and reference processes / William A. Katz
McGraw-Hill, 1992
Buku Referensi
Opportunities for reference services : the bright side of reference services in the 1990's / edited by Bill Katz
Haworth Press, 1991
Buku Referensi
Expert systems in reference services / Christine Roysdon, Howard D. White, editors
Haworth Press, 1989
Buku Referensi
Current opportunities for the effective meta-assessment of online reference services
Artikel Jurnal
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