Cita APA (7a ed.)

Winfrey, L. P. (1982). Pig appeal. Walker.

Cita Chicago Style (17a ed.)

Winfrey, Laurie Platt. Pig Appeal. New York: Walker, 1982.

Cita MLA (9a ed.)

Winfrey, Laurie Platt. Pig Appeal. Walker, 1982.