Citazione Stile APA (7a Edizione)

Harris, M., & Mower, D. S. (2006). New opportunities: Intermediate : teacher's book (New ed.).

Citazione stile Chigago Style (17a edizione)

Harris, Michael, e David Sikorzynska Mower. New Opportunities: Intermediate : Teacher's Book. New ed. Harlow, 2006.

Citatione MLA (9a ed.)

Harris, Michael, e David Sikorzynska Mower. New Opportunities: Intermediate : Teacher's Book. New ed. 2006.