Citazione Stile APA (7a Edizione)

Gear, J., & Gear, R. (2006). Cambridge preparation for the toefl test (Fourth edition.). Cambridge University Press.

Citazione stile Chigago Style (17a edizione)

Gear, Jolene, e Robert Gear. Cambridge Preparation for the Toefl Test. Fourth edition. Cambridge: Cambridge University Press, 2006.

Citatione MLA (9a ed.)

Gear, Jolene, e Robert Gear. Cambridge Preparation for the Toefl Test. Fourth edition. Cambridge University Press, 2006.