edited by Mildred Kaufman
An Aspen Publication, 1990
Buku Referensi
editor, Brian J. Rusbridge
Municipal Journal Limited, 1995
Buku Referensi
editor, Brian J. Rusbridge
Municipal Journal Limited, 1990
Buku Referensi
Intner, Sheila S., author
Libraries Unlimited, 1993
Buku Teks
Sturges, Paul, author
Facet Publishing , 2002
Buku Teks