APA (7th ed.) Citation

Arnold, J., Dörnyei, Z., & Pugliese, C. (2015). The principled communicative approach: Seven criteria for success (First published.). Helbling Languages.

Chicago Style (17th ed.) Citation

Arnold, Jane, Zoltán Dörnyei, and Chaz Pugliese. The Principled Communicative Approach: Seven Criteria for Success. First published. [Esslingen]: Helbling Languages, 2015.

MLA (9th ed.) Citation

Arnold, Jane, et al. The Principled Communicative Approach: Seven Criteria for Success. First published. Helbling Languages, 2015.