edited by Michael Gorman, Paul W. Winkler
American Library Association, 1978
Buku Referensi
American Library Association, 1988
Buku Referensi
Fleischer, Eugene
Neal-Schuman Publishers, Inc. , 1980
Buku Teks
Raju, Jaya
Chandos, 2006
Buku Teks
Gorman, Michael
American Library Association, 1989
Buku Referensi