Citazione Stile APA (7a Edizione)

Gray, J. (2013). Critical perspectives on language teaching materials (1a. ed.). Palgrave Macmillan.

Citazione stile Chigago Style (17a edizione)

Gray, John. Critical Perspectives on Language Teaching Materials. 1a. ed. Hampshire: Palgrave Macmillan, 2013.

Citatione MLA (9a ed.)

Gray, John. Critical Perspectives on Language Teaching Materials. 1a. ed. Palgrave Macmillan, 2013.