Cita APA (7th ed.)

Denning, K. M., Kessler, B., & Leben, W. R. (2006). English vocabulary elements (2nd ed.). Oxford University Press.

Cita Chicago (17th ed.)

Denning, Keith M., Brett Kessler, i William Ronald Leben. English Vocabulary Elements. 2nd ed. Oxford ; New York: Oxford University Press, 2006.

Cita MLA (9th ed.)

Denning, Keith M., et al. English Vocabulary Elements. 2nd ed. Oxford University Press, 2006.