Serials and reference services
edited by Robin Kinder; Bill Katz
The Haworth Press, 1990
 Buku Teks
Assessment and accountability in reference work
edited by Susan Griswold Blandy; Lynne M. Martin; Mary L. Strife
The Haworth Press, 1992
 Buku Teks
Katz, William A., 1924-
Introduction to reference work; Volume II: reference services and reference processes
McGraw-Hill, 1987
 Buku Teks
Katz, William A., 1924-
Introduction to reference work volume II: reference services and reference progresses
McGraww-Hill, 1992
 Buku Teks
Reference services in the humanities
edited by Judy Reynolds
Haworth Press, 1994
 Buku Referensi