Devettere, Raymond J.
Georgetown University Press, 1995
Buku Teks
Louis Rubino, Salvador Esparza, Yolanda Reid Chassiakos, editor
Jones & Bartlett Learning, 2014
Buku Teks
The Haworth Press, 1991
Buku Teks
Boyd, Harper W., Jr., author
Richard D. Irwin, 1958
Buku Teks
Boyd, Harper W., Jr., author
Richard D. Irwin, 1977
Buku Teks