Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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