with introduction by Harold Earl Hammond
Cambridge Book, 1964
Buku Teks
Heffner, Richard D.
A Mentor Book, 1956
Buku Teks
Risjord, Norman K., author
Prentice-Hall, 1985
Buku Teks
Williams, T. Harry, author
Alfred A. Knopf, 1963
Buku Teks
Beard, Charles A., author
New Home Library, 1944
Buku Teks