APA (7th ed.) Citation

Hornby, A. S., & Wehmeier, S. (2010). Oxford advanced learner's dictionary (8th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Hornby, A. S., and Sally Wehmeier. Oxford Advanced Learner's Dictionary. 8th ed. Oxford: Oxford University Press, 2010.

MLA (9th ed.) Citation

Hornby, A. S., and Sally Wehmeier. Oxford Advanced Learner's Dictionary. 8th ed. Oxford University Press, 2010.