edited by Kent Hendrickson
The Haworth Press , 1991
Buku Teks
Laughlin, Sara, author
American Library association, 2008
eBooks
Stueart, Robert D., author
Libraries unlimited, Inc, 1987
Buku Teks
Parry, Julie, author
Librry Association Publishing, 1993
Buku Teks
Editor by Charles R. McClure
The Haworth Press, 1982
Buku Teks