APA (7th ed.) Citation

(1970). Encyclopaedia Britannica. Encyclopaedia Britannica : W. Benton.

Chicago Style (17th ed.) Citation

Encyclopaedia Britannica. Chicago [etc.]: Encyclopaedia Britannica : W. Benton, 1970.

MLA (9th ed.) Citation

Encyclopaedia Britannica. Encyclopaedia Britannica : W. Benton, 1970.

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