Reynolds, Lloyd G., author
Richard D. Irwin, 1966
Buku Teks
Reynolds, Lloyd G., author
Richard D. Irwin, 1968
Buku Teks
McEachern, William A., author
South-Western College Publishing, 1988
Buku Teks
Coyle, Diane, author
Texere, 2002
Buku Teks
Frain, H. LaRue
Hougton Mifflin Company, 1937
Buku Teks