APA (7th ed.) Citation

(1994). The new encyclopaedia Britannica (15a. ed.). Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

The New Encyclopaedia Britannica. 15a. ed. Chicago: Encyclopaedia Britannica, 1994.

MLA (9th ed.) Citation

The New Encyclopaedia Britannica. 15a. ed. Encyclopaedia Britannica, 1994.

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