APA (7th ed.) Citation

(2007). Encyclopaedia Britannica (15th ed.). Encyclopeadia Britannica, Inc..

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica. 15th ed. Chicago, Ill.: Encyclopeadia Britannica, Inc., 2007.

MLA (8th ed.) Citation

Encyclopaedia Britannica. 15th ed. Encyclopeadia Britannica, Inc., 2007.

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