Citazione Stile APA (7a Edizione)

Soars L. Liz & Soars J. John. (2003). New Headway English Course. Intermediate: Student's Book (25th ed.). New York, Oxford University Press, 2003.

Citazione stile Chigago Style (17a edizione)

Soars L. Liz e Soars J. John. New Headway English Course. Intermediate: Student's Book. 25th ed. New York, Oxford University Press, 2003, 2003.

Citatione MLA (9a ed.)

Soars L. Liz e Soars J. John. New Headway English Course. Intermediate: Student's Book. 25th ed. New York, Oxford University Press, 2003, 2003.