APA (7th ed.) Citation

Ashmore, H. S. (1961). Encyclopaedia Britannica: A new survey of universal knowledge. Encyclopaedia Britannica.

Chicago Style (17th ed.) Citation

Ashmore, Harry S. Encyclopaedia Britannica: A New Survey of Universal Knowledge. Chicago: Encyclopaedia Britannica, 1961.

MLA (9th ed.) Citation

Ashmore, Harry S. Encyclopaedia Britannica: A New Survey of Universal Knowledge. Encyclopaedia Britannica, 1961.

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