Katz, William A., 1924-, author
Your library : a reference guide
Holt, Rinehart and Winston, 1979
 Buku Teks
Roles in digital reference
 Artikel Jurnal
Conflicts in reference services
Edited by Bill Katz
The Haworth Press , 1985
 Buku Teks
Reference services expertise
edited by Bill Katz
The Haworth Press , 1993
 Buku Teks
Serials and reference services
edited by Robin Kinder; Bill Katz
The Haworth Press, 1990
 Buku Teks
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