APA (7th ed.) Citation

(1990). Encyclopædia universalis. Encyclopaedia Universalis.

Chicago Style (17th ed.) Citation

Encyclopædia Universalis. Paris: Encyclopaedia Universalis, 1990.

MLA (9th ed.) Citation

Encyclopædia Universalis. Encyclopaedia Universalis, 1990.

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