Hungerford, Thomas W., author
Thomson Brooks/Cole, 2005
Buku Teks
Bruce, William J., author
Appleton-Century-Crofts, 1971
Buku Teks
Marcus, Marvin, author
Houghton Mifflin, 1970
Buku Teks
Cameron, Edward A., author
Holt, Rinehart and Winston, 1965
Buku Teks
Larson, Ron, 1941-, author
D.C. Health, 1989
Buku Teks