APA Edition Citation

Thornbury, S., & Watkins, P. (2013). The Certificate in English language teaching to adults Course: Camridge English. Cambridge University Press.

Chicago Edition Citation

Thornbury, Scott, and Peter Watkins. The Certificate in English Language Teaching to Adults Course: Camridge English. Cambridge: Cambridge University Press, 2013.

MLA Edition Citation

Thornbury, Scott, and Peter Watkins. The Certificate in English Language Teaching to Adults Course: Camridge English. Cambridge University Press, 2013.