APA (7th ed.) Citation

(1966). Webster's third new international dictionary of the English language unabridged: A Merriam-Webster : with seven language dictionary. Encyclopaedia Britannica [etc.].

Chicago Style (17th ed.) Citation

Webster's Third New International Dictionary of the English Language Unabridged: A Merriam-Webster : With Seven Language Dictionary. Chicago [etc.]: Encyclopaedia Britannica [etc.], 1966.

MLA (9th ed.) Citation

Webster's Third New International Dictionary of the English Language Unabridged: A Merriam-Webster : With Seven Language Dictionary. Encyclopaedia Britannica [etc.], 1966.