APA (7th ed.) Citation

Twain, M. (2004). Tom Sawyer Abroad. Project Gutenberg.

Chicago Style (17th ed.) Citation

Twain, Mark. Tom Sawyer Abroad. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Twain, Mark. Tom Sawyer Abroad. Project Gutenberg, 2004.

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