1. Rothel, David. The Singing Cowboys. South Brunswick, N.J., and New York: A. S. Barnes, 1978
2. Tuska, Jon, and Nick Pierarski. The Frontier Experience: A Reader's Guide to the Life and Literature of the American West. Jefferson, N.C.: McFarland, 1984
3. Fiedler, Leslie. The Return of the Vanishing American. New York: Stein and Day, 1960
4. “John Ford and Monument Valley.”;McCarthy;American Film,1978
5. Wright, Will. Six Guns and Society: A Structural Study of the Western. Berkeley: University of California Press, 1976