Brandt, Conrad
Harvard University Press, 1952, 1959
Buku Teks
Houn, Franklin W.
Prenrice-Hall , 1973
Buku Teks
Schwartz, Benjamin
Harvard University Press, 1952, 1961
Buku Teks
Schwartz, Benjamin
Harper Torchbooks and The Academy Library, 1967
Buku Teks
Brackman, Arnold C.
Frederic A. Preager, 1963
Buku Teks