APA (7th ed.) Citation

Richards, J. C., & Rodgers, T. S. (2011). Approaches and methods in language teaching (2nd ed. [18th printing].). Cambridge University Press.

Chicago Style (17th ed.) Citation

Richards, Jack C., and Theodore S. Rodgers. Approaches and Methods in Language Teaching. 2nd ed. [18th printing]. Cambridge [etc.]: Cambridge University Press, 2011.

MLA (9th ed.) Citation

Richards, Jack C., and Theodore S. Rodgers. Approaches and Methods in Language Teaching. 2nd ed. [18th printing]. Cambridge University Press, 2011.