Scherer, Jacques, author
Librairie Nizet, 1986
Buku Teks
Fischbach, Frances Talaska, author
Lippincot Company, 1992
Buku Teks
Donelson, Frances Elaine
Mayfield Publishing Company, 1999
Buku Teks
Jahn, Theodore Louis
WM C Brown, 1949
Buku Teks
Andrew
Public Affair Press, 1949
Buku Teks