APA (7th ed.) Citation

Tilbury, A. [., Clementson, T., Hendra, L. A., & Rea, D. (2010). English Unlimited B1 Pre-intermediate: Coorsebook with e-Portfolio. Cambridge University Press.

Chicago Style (17th ed.) Citation

Tilbury, Alex [eat], Theresa Clementson, Leslie Anne Hendra, and David Rea. English Unlimited B1 Pre-intermediate: Coorsebook with E-Portfolio. Cambridge: Cambridge University Press, 2010.

MLA (9th ed.) Citation

Tilbury, Alex [eat], et al. English Unlimited B1 Pre-intermediate: Coorsebook with E-Portfolio. Cambridge University Press, 2010.