Citazione Stile APA (7a Edizione)

Soars L. Liz, Soars J. John, & Wheeldon S. Sylvia. (2005). New Headway. Upper-Intermediate: Student's Workbook CD (3rd ed.). New York, Oxford University Press, 2005.

Citazione stile Chigago Style (17a edizione)

Soars L. Liz, Soars J. John, e Wheeldon S. Sylvia. New Headway. Upper-Intermediate: Student's Workbook CD. 3rd ed. New York, Oxford University Press, 2005, 2005.

Citatione MLA (9a ed.)

Soars L. Liz, et al. New Headway. Upper-Intermediate: Student's Workbook CD. 3rd ed. New York, Oxford University Press, 2005, 2005.