APA aipamena

Soars, J., & Soars, L. (1986). Headway: Workbook, Upper-Intermediate. Oxford: Oxford University Press.

Chicago Style aipamena

Soars, John., và Liz Soars. Headway: Workbook, Upper-Intermediate. Oxford: Oxford University Press, 1986.

MLA aipamena

Soars, John., và Liz Soars. Headway: Workbook, Upper-Intermediate. Oxford: Oxford University Press, 1986.