APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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