Hicks, John R., author
Houghton Mifflin , 1946
Buku Teks
Hall, Kermit L.
Oxford University Press, 1989
Buku Teks
Diggins, John Patrick
W.W Norton, 1992
Buku Teks
Morison, Samuel Eliot, author
Oxford University Press, 1962
Buku Teks
Langguth, A.J
Simon and Schuster, 1988
Buku Teks