Citazione Stile APA (7a Edizione)

Redston, C., & Cunningham, G. (2007). Face2face: Upper intermediate. Student's book (1a. ed.). Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Redston, Chris, e Gillie Cunningham. Face2face: Upper Intermediate. Student's Book. 1a. ed. Cambridge: Cambridge University Press, 2007.

Citatione MLA (9a ed.)

Redston, Chris, e Gillie Cunningham. Face2face: Upper Intermediate. Student's Book. 1a. ed. Cambridge University Press, 2007.