Mitchell, Broadus, author
Oxford University Press, 1964
Buku Teks
introduction by Edward G. Smith
Barnes & Noble, 1966
Buku Teks
Dumbauld, Edward, author
University of Oklahoma Press, 1946
Buku Teks
Mussatti, James
D. Van Nostrand Company, Inc., 1960
Buku Teks
Farrand, Max, author
Yale University Press, 1962
Buku Teks