Cita APA (7a ed.)

Chérel, A. (1957). Spanish without toil. Assimil.

Cita Chicago Style (17a ed.)

Chérel, A. Spanish Without Toil. Bruxelles: Assimil, 1957.

Cita MLA (9a ed.)

Chérel, A. Spanish Without Toil. Assimil, 1957.