APA (7th ed.) Citation

Hornby, A. S., Wehmeier, S., & Ashby, M. (2000). Oxford advanced learner's dictionary of current English (6th ed.). The University Press.

Chicago Style (17th ed.) Citation

Hornby, A. S., Sally Wehmeier, and Michael Ashby. Oxford Advanced Learner's Dictionary of Current English. 6th ed. Oxford: The University Press, 2000.

MLA (9th ed.) Citation

Hornby, A. S., et al. Oxford Advanced Learner's Dictionary of Current English. 6th ed. The University Press, 2000.