Citazione Stile APA (7a Edizione)

Benson, P., & Voller, P. (1997). Autonomy and independence in language learning. Longman.

Citazione stile Chigago Style (17a edizione)

Benson, Phil, e Peter Voller. Autonomy and Independence in Language Learning. New York: Longman, 1997.

Citatione MLA (8a ed.)

Benson, Phil, e Peter Voller. Autonomy and Independence in Language Learning. Longman, 1997.