Aschheim, Joseph, author
Johns Hopkins Press, 1961
Buku Teks
Samaha, Joel, author
West Publishing, 1988
Buku Teks
Gardner, Thomas J., 1800-1850, author
Wadsworth and Cengage Learning, 2012
Buku Teks
Karlen, Delmar
West, 1972
Buku Teks
edited by Frederick W. Moorman, revised by morris Palmer Tilley
DC Health, 1917
Buku Teks