edited by Norman F. Cantor and Samuel Berner
Thomas Y. Crowell, 1970
Buku Teks
White, James L.
Washington Square Press, 1966
Buku Teks
Jackson, J. Hampden
Cambridge University Press, 1941
Buku Teks
Wolf, Eric R.
University of California Press, 1997
Buku Teks
Garrett, Mitchell B.
Appleton-Century-Crofts, , 1947
Buku Teks