Keaveney, Sydney Starr, author
Gale Research Co., 1974
Buku Teks
Kirby, David K., author
Gale Research, 1975
Buku Referensi
Blazek, Ron, author
Libraries Unlimited, 2000
Buku Referensi
Antony, Arthur, author
John Wiley & Sons, 1979
Buku Teks
edited by Stephen Goddard
Barnes & Noble Books , 1983
Buku Referensi