APA (7th ed.) Citation

(2003). The new encyclopædia Britannica (15th ed.). Encyclopædia Britannica, Inc.

Chicago Style (17th ed.) Citation

The New Encyclopædia Britannica. 15th ed. Chicago: Encyclopædia Britannica, Inc, 2003.

MLA (9th ed.) Citation

The New Encyclopædia Britannica. 15th ed. Encyclopædia Britannica, Inc, 2003.

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