Cita APA (7th ed.)

Walker, M. (1992). Addison - Wesley A ESL. Addison-Wesley.

Cita Chicago (17th ed.)

Walker, Michael. Addison - Wesley A ESL. New York: Addison-Wesley, 1992.

Cita MLA (9th ed.)

Walker, Michael. Addison - Wesley A ESL. Addison-Wesley, 1992.