APA (7th ed.) Citation

Encyclopaedia Britannica, Inc. (2007). The New Encyclopaedia Britannica (Fifteenth edition.). Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica. Fifteenth edition. Chicago: Encyclopaedia Britannica, 2007.

MLA (8th ed.) Citation

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica. Fifteenth edition. Encyclopaedia Britannica, 2007.

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