Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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