Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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