APA (7th ed.) Citation

Doff, A. (2016). Empower C1: Advanced student's book. Cambridge University Press.

Chicago Style (17th ed.) Citation

Doff, Adrian. Empower C1: Advanced Student's Book. Cambridge, United Kingdom: Cambridge University Press, 2016.

MLA (9th ed.) Citation

Doff, Adrian. Empower C1: Advanced Student's Book. Cambridge University Press, 2016.