APA (7th ed.) Citation

Cook, V. ., & Singleton, D. M. . [. (2014). Key topics in second language acquisition. Multilingual Matters.

Chicago Style (17th ed.) Citation

Cook, Vivian , and D. M. [] Singleton. Key Topics in Second Language Acquisition. Bristol, England: Multilingual Matters, 2014.

MLA (9th ed.) Citation

Cook, Vivian , and D. M. [] Singleton. Key Topics in Second Language Acquisition. Multilingual Matters, 2014.