APA (7th ed.) Citation

Hornby, A. S. (2003). Oxford advanced learner's dictionary (New 7th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Hornby, Albert Sydney. Oxford Advanced Learner's Dictionary. New 7th ed. Oxford ; New York: Oxford University Press, 2003.

MLA (8th ed.) Citation

Hornby, Albert Sydney. Oxford Advanced Learner's Dictionary. New 7th ed. Oxford University Press, 2003.