Citazione Stile APA (7a Edizione)

Soars, L., & Soars, J. (1997). New headway english course: Intermediate student's book: part B, units 7-12 (2.ed.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Soars, Liz, e John Soars. New Headway English Course: Intermediate Student's Book: Part B, Units 7-12. 2.ed. Oxford, Inglaterra: Oxford University Press, 1997.

Citatione MLA (9a ed.)

Soars, Liz, e John Soars. New Headway English Course: Intermediate Student's Book: Part B, Units 7-12. 2.ed. Oxford University Press, 1997.