Miller, John C.
Stanford University Press, 1965
Buku Teks
Hacker, Louis M.
Columbia University Press, 1947
Buku Teks
Hacker, Louis M.
Columbia University Press, 1947.
Buku Teks
edited by Frank Freidel and Norman Pollack
Rand McNally, 1963
Buku Teks
Alden, John Richard
Harper & Row Publishers, 1963
Buku Teks