Cita APA (7a ed.)

Bohner, C. H. (1965). Robert Penn Warren. Twayne Publishers.

Cita Chicago Style (17a ed.)

Bohner, Charles H. Robert Penn Warren. New York: Twayne Publishers, 1965.

Cita MLA (8a ed.)

Bohner, Charles H. Robert Penn Warren. Twayne Publishers, 1965.