APA (7th ed.) Citation

Twain, M. (2008). Fenimore Cooper's Literary Offenses. Project Gutenberg.

Chicago Style (17th ed.) Citation

Twain, Mark. Fenimore Cooper's Literary Offenses. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Twain, Mark. Fenimore Cooper's Literary Offenses. Project Gutenberg, 2008.

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