APA (7th ed.) Citation

Project Gutenberg & Twain, M. (2004). The Innocents Abroad. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Project Gutenberg and Mark Twain. The Innocents Abroad. Salt Lake City: Project Gutenberg Literary Archive Foundation, 2004.

MLA (9th ed.) Citation

Project Gutenberg and Mark Twain. The Innocents Abroad. Project Gutenberg Literary Archive Foundation, 2004.

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