APA (7th ed.) Citation

HORNBY, A. S. (1983). Guide to Patterns and Usage in English. Oxford University.

Chicago Style (17th ed.) Citation

HORNBY, A. S. Guide to Patterns and Usage in English. Oxford University, 1983.

MLA (8th ed.) Citation

HORNBY, A. S. Guide to Patterns and Usage in English. Oxford University, 1983.

Warning: These citations may not always be 100% accurate.