Cita APA (7th ed.)

Walker, M. Addison-Wesley ESL: Student Book B (1a. ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Walker, Michael. Addison-Wesley ESL: Student Book B. 1a. ed. New York: Addison-Wesley.

Cita MLA (9th ed.)

Walker, Michael. Addison-Wesley ESL: Student Book B. 1a. ed. Addison-Wesley.