APA (7th ed.) Citation

Hornby, A. S., & Wehmeier, S. (2005). Oxford advanced learner's dictionary of current English (7th ed.). The University Press.

Chicago Style (17th ed.) Citation

Hornby, A. S., and Sally Wehmeier. Oxford Advanced Learner's Dictionary of Current English. 7th ed. Oxford: The University Press, 2005.

MLA (9th ed.) Citation

Hornby, A. S., and Sally Wehmeier. Oxford Advanced Learner's Dictionary of Current English. 7th ed. The University Press, 2005.