Rosenberg, Alexander, author
John Hopkins University Press, 1980
Buku Teks
Payne, James L., author
Lytton, 1975
Buku Teks
Wright, Burton, author
W.B. Saunders, 1978
Buku Teks
Watson, David L., author
Scott, Foresman, 1984
Buku Teks
Kukla, Andre, author
[publisher not identified], 2000
Buku Teks