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