Cita APA

Walker, M. (1992). Addison-wesley ESL. New York: Addison-wesley Publishing Company.

Citación estilo Chicago

Walker, Michael. Addison-wesley ESL. New York: Addison-wesley Publishing Company, 1992.

Cita MLA

Walker, Michael. Addison-wesley ESL. New York: Addison-wesley Publishing Company, 1992.