Cita APA

Liz, & Soars, J. (2009). American headway: Workbook 4. New York: Oxford University Press.

Citación estilo Chicago

Liz, y John Soars. American Headway: Workbook 4. New York: Oxford University Press, 2009.

Cita MLA

Liz, y John Soars. American Headway: Workbook 4. New York: Oxford University Press, 2009.