Nunan, D., & Bailey, K. M. (2009). Exploring second language classroom research: A comprehensive guide. Heinle, Cengage Learning.
Chicago-viite (17. p.)Nunan, David, ja Kathleen M. Bailey. Exploring Second Language Classroom Research: A Comprehensive Guide. Boston, MA: Heinle, Cengage Learning, 2009.
MLA-viite (8. p.)Nunan, David, ja Kathleen M. Bailey. Exploring Second Language Classroom Research: A Comprehensive Guide. Heinle, Cengage Learning, 2009.
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