APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Hornby, Albert Sydney. Oxford Advanced Learner's Dictionary of Current English. 7th ed. London: University Press, 2005.

MLA (9th ed.) Citation

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