APA (7th ed.) Citation

(1958). The nature of the universe. Encyclopædia Britannica.

Chicago Style (17th ed.) Citation

The Nature of the Universe. London: Encyclopædia Britannica, 1958.

MLA (9th ed.) Citation

The Nature of the Universe. Encyclopædia Britannica, 1958.

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