APA (7th ed.) Citation

Encyclopaedia Britannica, Inc. (2005). The new encyclopaedia Britannica (15th ed.). Encyclopaedia Britannica, Inc.

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica. 15th ed. Chicago: Encyclopaedia Britannica, Inc, 2005.

MLA (9th ed.) Citation

Encyclopaedia Britannica, Inc. The New Encyclopaedia Britannica. 15th ed. Encyclopaedia Britannica, Inc, 2005.

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