APA (7th ed.) Citation

Moore, C. C. (2007). 'Twas the Night Before Christmas. Project Gutenberg.

Chicago Style (17th ed.) Citation

Moore, Clement Clarke. 'Twas the Night Before Christmas. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Moore, Clement Clarke. 'Twas the Night Before Christmas. Project Gutenberg, 2007.

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