Cita APA

Soars, L., Soars, J., & Wheeldon, S. (2009). Ameriacan Headway 1: Workbook (2nd ed.). New York: Oxford University Press.

Citación estilo Chicago

Soars, Liz, John Soars, y Sylvia Wheeldon. Ameriacan Headway 1: Workbook. 2nd ed. New York: Oxford University Press, 2009.

Cita MLA

Soars, Liz, John Soars, y Sylvia Wheeldon. Ameriacan Headway 1: Workbook. 2nd ed. New York: Oxford University Press, 2009.