Style de citation APA (7e éd.)
Soars, J., & Soars, L. (1997). Headway. Pre-Intermediate. Workbook. With Key (14th impression.). Oxford University Press.
Style de citation Chicago (17e éd.)
Soars, John, et Liz Soars. Headway. Pre-Intermediate. Workbook. With Key. 14th impression. Oxford: Oxford University Press, 1997.
Style de citation MLA (9e éd.)
Soars, John, et Liz Soars. Headway. Pre-Intermediate. Workbook. With Key. 14th impression. Oxford University Press, 1997.
Attention : ces citations peuvent ne pas être correctes à 100%.