Citazione Stile APA (7a Edizione)

Mellgren, L., Walker, M., & Upshur, J. A. (1974). New horizons in english: Book 5. Addison-Wesley Publishing Company.

Citazione stile Chigago Style (17a edizione)

Mellgren, Lars, Michael Walker, e John A. Upshur. New Horizons in English: Book 5. Massachusetts, EUA: Addison-Wesley Publishing Company, 1974.

Citatione MLA (9a ed.)

Mellgren, Lars, et al. New Horizons in English: Book 5. Addison-Wesley Publishing Company, 1974.