APA Alıntı

Soars, J., & Soars, L. (1993). Headway intermediate student's book & pre-intermediate workbook. Oxford: Oxford University Press.

Chicago Stili Alıntı

Soars, John, ve Liz Soars. Headway Intermediate Student's Book & Pre-intermediate Workbook. Oxford: Oxford University Press, 1993.

MLA Alıntı

Soars, John, ve Liz Soars. Headway Intermediate Student's Book & Pre-intermediate Workbook. Oxford: Oxford University Press, 1993.