Puccio, Joseph A.
Serials reference work / Joseph A. Puccio
Libraries Unlimited, 1989
 Buku Referensi
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
Information brokers and reference services
edited by Robin Kinder; Bill Katz
The Haworth Press, 1988
 Buku Teks
Bopp, Richard E.
Reference and information services : an introduction
Libraries Unlimited, 2001
 Buku Teks