Bye, Raymond T.
Appleton-Century-Crofts, 1947
Buku Teks
Kiekhofer, William H., author
D. Appleton Century, 1946
Buku Teks
Mansfield, Edwin, author
W.W. Norton, 1974
Buku Teks
Richard D. Irwin, 1972
Buku Teks
Meade, James E., author
University of Chicago Press, 1953
Buku Teks