APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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