APA (7th ed.) Zitazioa

Wellek, R. (1956). Theory of literature. Penguin.

Chicago Style (17th ed.) Zitazioa

Wellek, Rene. Theory of Literature. New York: Penguin, 1956.

MLA (9th ed.) Zitazioa

Wellek, Rene. Theory of Literature. Penguin, 1956.