Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

WELLEK, Rene. Theory of Literature. Harmondsworth, Middlesex: Penguin, 1956.

Cita MLA (9a ed.)

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