APA (7th ed.) Citation

Webster, N. (1867). An American Dictionary of the English Language. Merriam.

Chicago Style (17th ed.) Citation

Webster, Noah. An American Dictionary of the English Language. Philadelphia: Merriam, 1867.

MLA (8th ed.) Citation

Webster, Noah. An American Dictionary of the English Language. Merriam, 1867.

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