Bernstein, Melvin H
Twayne, 1964
Buku Teks
Burns, James McGregor, author
Avon Book Division, 1961
Buku Teks
Davis, Jack, author
Dent, 1988
Buku Teks
Fletcher, John Gould, author
Brentano's , 1928
Buku Teks
Coates, John 1
Westview Press, 1992
Buku Teks