APA (7th ed.) Citation

Doff, A., Goldstein, B., & Baigent, M. (2011). English Unlimited: C1 advanced (First published.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Doff, Adrian, Ben Goldstein, and Maggie Baigent. English Unlimited: C1 Advanced. First published. Cambridge: Cambridge University Press, 2011.

MLA (9th ed.) Citation

Doff, Adrian, et al. English Unlimited: C1 Advanced. First published. Cambridge University Press, 2011.