APA (7th ed.) Citation

(1994). The Encyclopaedia Britannica supplement. Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

The Encyclopaedia Britannica Supplement. Chicago [u.a.]: Encyclopaedia Britannica, 1994.

MLA (8th ed.) Citation

The Encyclopaedia Britannica Supplement. Encyclopaedia Britannica, 1994.

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