Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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