APA (7th ed.) Citation

Hornby & Wehmeier. (2005). Oxford advanced learner's dictionary of current english (7th ed.). University Press.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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