Cita APA (7a ed.)

Wellek, R., & Warren, A. 1. j. a. (1956). Theory of literature. Harcourt.

Cita Chicago Style (17a ed.)

Wellek, Rene, y Austin 1899- joint auth Warren. Theory of Literature. New York: Harcourt, 1956.

Cita MLA (9a ed.)

Wellek, Rene, y Austin 1899- joint auth Warren. Theory of Literature. Harcourt, 1956.