edited by David J. Rothman and Sheila M. Rothman
Basic Books, 1975
Buku Teks
Cohen, Nathan Edward, author
Holt, Rinehart and Winston, 1958
Buku Teks
Hacker, Louis M., author
Columbia University Press, 1947.
Buku Teks
Hacker, Louis M., author
Columbia University Press, 1947
Buku Teks
Farley, John E., author
Prentice-Hall, 1987
Buku Teks