APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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