APA (7th ed.) Citation

WEBSTER'S... (1979). Webster's new twentieth century dictionary of the English language. Milliam Collin's Publisher.

Chicago Style (17th ed.) Citation

WEBSTER'S... Webster's New Twentieth Century Dictionary of the English Language. Milliam Collin's Publisher, 1979.

MLA (8th ed.) Citation

WEBSTER'S... Webster's New Twentieth Century Dictionary of the English Language. Milliam Collin's Publisher, 1979.

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