APA (7th ed.) Citation

Norton, A. (2009). All Cats Are Gray. Project Gutenberg.

Chicago Style (17th ed.) Citation

Norton, Andre. All Cats Are Gray. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Norton, Andre. All Cats Are Gray. Project Gutenberg, 2009.

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