APA (7th ed.) Citation

(1971). Webster's third new international dictionary of the English language. Encyclopedia Britannica.

Chicago Style (17th ed.) Citation

Webster's Third New International Dictionary of the English Language. Chicago: Encyclopedia Britannica, 1971.

MLA (9th ed.) Citation

Webster's Third New International Dictionary of the English Language. Encyclopedia Britannica, 1971.

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