APA (7th ed.) Citation

Twain, M. (2008). The Prince and the Pauper. Project Gutenberg.

Chicago Style (17th ed.) Citation

Twain, Mark. The Prince and the Pauper. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Twain, Mark. The Prince and the Pauper. Project Gutenberg, 2008.

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