APA (7th ed.) Citation

Kennedy, C. W. (1940). Beowulf: The oldest English epic. Oxford university press.

Chicago Style (17th ed.) Citation

Kennedy, Charles W. Beowulf: The Oldest English Epic. New York, London [etc.]: Oxford university press, 1940.

MLA (9th ed.) Citation

Kennedy, Charles W. Beowulf: The Oldest English Epic. Oxford university press, 1940.