APA (7th ed.) Citation

Denning, K., Kessler, B., & Leben, W. R. (2007). English vocabulary elements (2. ed.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Denning, Keith, Brett Kessler, and William R. Leben. English Vocabulary Elements. 2. ed. Oxford [u.a.]: Oxford Univ. Press, 2007.

MLA (9th ed.) Citation

Denning, Keith, et al. English Vocabulary Elements. 2. ed. Oxford Univ. Press, 2007.