APA (7th ed.) Citation

Hornby, A. S., & Wehmeier. (2003). Oxford Advanced Learner's dictionary of current English (Sixth Edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Hornby, A. S., and Wehmeier. Oxford Advanced Learner's Dictionary of Current English. Sixth Edition. Oxford: Oxford University Press, 2003.

MLA (8th ed.) Citation

Hornby, A. S., and Wehmeier. Oxford Advanced Learner's Dictionary of Current English. Sixth Edition. Oxford University Press, 2003.