Citazione Stile APA (7a Edizione)

Soars, J. (2001). American headway 2: Workbook / John Soars, Liz Soars. Oxford, UK : Oxford University Press, 2001.

Citazione stile Chigago Style (17a edizione)

Soars, John. American Headway 2: Workbook / John Soars, Liz Soars. Oxford, UK : Oxford University Press, 2001, 2001.

Citatione MLA (9a ed.)

Soars, John. American Headway 2: Workbook / John Soars, Liz Soars. Oxford, UK : Oxford University Press, 2001, 2001.