APA (7th ed.) Citation

Hornby, A. (1990). Oxford advanced learners dictionary of current English (4th ed.). Oxford University Press.

Chicago Style (17th ed.) Citation

Hornby, A.S. Oxford Advanced Learners Dictionary of Current English. 4th ed. Oxford: Oxford University Press, 1990.

MLA (8th ed.) Citation

Hornby, A.S. Oxford Advanced Learners Dictionary of Current English. 4th ed. Oxford University Press, 1990.