APA Alıntı

Soars, J., & Soars, L. (1987). Headway upper - intermediate: Workbook. New York: Oxford University Press.

Chicago Stili Alıntı

Soars, John, ve Liz Soars. Headway Upper - Intermediate: Workbook. New York: Oxford University Press, 1987.

MLA Alıntı

Soars, John, ve Liz Soars. Headway Upper - Intermediate: Workbook. New York: Oxford University Press, 1987.