APA (7th ed.) Citation

Hibbert, C., & Hibbert, E. (1988). The Encyclopædia of Oxford. Macmillan.

Chicago Style (17th ed.) Citation

Hibbert, Christopher, and Edward Hibbert. The Encyclopædia of Oxford. London: Macmillan, 1988.

MLA (9th ed.) Citation

Hibbert, Christopher, and Edward Hibbert. The Encyclopædia of Oxford. Macmillan, 1988.

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