Merriam-Webster, Inc. (1983). 9,000 words: A supplement to Webster's third new international dictionary. Merriam-Webster.
Chicago Style (17th ed.) CitationMerriam-Webster, Inc. 9,000 Words: A Supplement to Webster's Third New International Dictionary. Springfield, Mass., U.S.A.: Merriam-Webster, 1983.
MLA (9th ed.) CitationMerriam-Webster, Inc. 9,000 Words: A Supplement to Webster's Third New International Dictionary. Merriam-Webster, 1983.
Warning: These citations may not always be 100% accurate.