APA aipamena

Liz, & Soars, J. (2009). American headway: Workbook 1. New York: Oxford University Press.

Chicago Style aipamena

Liz, và John Soars. American Headway: Workbook 1. New York: Oxford University Press, 2009.

MLA aipamena

Liz, và John Soars. American Headway: Workbook 1. New York: Oxford University Press, 2009.