APA (7th ed.) Citation

(1926). The Encyclopaedia Britannica (13.). Encyclopædia Britannica, Inc.

Chicago Style (17th ed.) Citation

The Encyclopaedia Britannica. 13. New York: Encyclopædia Britannica, Inc, 1926.

MLA (8th ed.) Citation

The Encyclopaedia Britannica. 13. Encyclopædia Britannica, Inc, 1926.

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