Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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