APA (7th ed.) Citation

Tilbury, A., Hendra, L. A., Rea, D., & Clementson, T. (2011). English Unlimited: B2 Upper Intermediate Coursebook with e-portfolio. Cambridge University Press.

Chicago Style (17th ed.) Citation

Tilbury, Alex, Leslie Anne Hendra, David Rea, and Theresa Clementson. English Unlimited: B2 Upper Intermediate Coursebook with E-portfolio. Cambridge: Cambridge University Press, 2011.

MLA (9th ed.) Citation

Tilbury, Alex, et al. English Unlimited: B2 Upper Intermediate Coursebook with E-portfolio. Cambridge University Press, 2011.