Citazione Stile APA (7a Edizione)

Nunan, D., & Bailey, K. M. (2009). Exploring second language classroom research: A comprehensive guide. Heinle, Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Nunan, David, e Kathleen M. Bailey. Exploring Second Language Classroom Research: A Comprehensive Guide. Boston, MA: Heinle, Cengage Learning, 2009.

Citatione MLA (8a ed.)

Nunan, David, e Kathleen M. Bailey. Exploring Second Language Classroom Research: A Comprehensive Guide. Heinle, Cengage Learning, 2009.