Ambrose, Stephen E., author
Penguin Books, 2011
Buku Teks
Spanier, John
Frederck A. Praeger, 1968
Buku Teks
edited by Eugene R. Wittkopt
Martin Press, 1994
Buku Teks
Wesson, Robert G., author
Houghton Miffiln, 1977
Buku Teks
Bohlen, Charles E.
W.W. Norton & Company, 1969
Buku Teks