APA (7th ed.) Citation

(1993). The New encyclopaedia Britannica. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

The New Encyclopaedia Britannica. Chicago: Encyclopedia Britannica, 1993.

MLA (9th ed.) Citation

The New Encyclopaedia Britannica. Encyclopedia Britannica, 1993.

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