introduction by Edward G. Smith
Barnes & Noble, 1966
Buku Teks
Dumbauld, Edward
University of Oklahoma Press, 1946
Buku Teks
Farrand, Max
Yale University Press, 1962
Buku Teks
Mussatti, James
D. Van Nostrand Company, Inc., 1960
Buku Teks
United States Information Agency, 1987
Buku Teks