Parkes, Henry Bamford
Alfred A. Knoft, 1968.
Buku Teks
Commager, Henry Steele, selector
A Mentor Book, 1948
Buku Teks
Williams, T. Harry
Alfred A. Knopf, 1963
Buku Teks
Risjord, Norman K.
Prentice-Hall, 1985
Buku Teks
Beard, Charles A.
New Home Library, 1944
Buku Teks