Cita APA (7a ed.)

Cary, J. (1959). The horse's mouth. Penguin Books.

Cita Chicago Style (17a ed.)

Cary, Joyce. The Horse's Mouth. New York: Penguin Books, 1959.

Cita MLA (9a ed.)

Cary, Joyce. The Horse's Mouth. Penguin Books, 1959.