Cita APA

Soars, J. &. L., & Soars, L. (1991). Headway, Pre-Intermediate: Workbook. Oxford: Oxford University Press.

Chicago Style Citation

Soars, John & Liz, i Liz Soars. Headway, Pre-Intermediate: Workbook. Oxford: Oxford University Press, 1991.

Cita MLA

Soars, John & Liz, i Liz Soars. Headway, Pre-Intermediate: Workbook. Oxford: Oxford University Press, 1991.

Atenció: Aquestes cites poden no estar 100% correctes.