APA (7th ed.) Citation

Project Gutenberg & Verne, J. (1994). Twenty thousand leagues under the sea. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Project Gutenberg and Jules Verne. Twenty Thousand Leagues Under the Sea. Salt Lake City: Project Gutenberg Literary Archive Foundation, 1994.

MLA (9th ed.) Citation

Project Gutenberg and Jules Verne. Twenty Thousand Leagues Under the Sea. Project Gutenberg Literary Archive Foundation, 1994.

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