APA (7th ed.) Citation

Davis, R. H. (1999). The Man Who Could Not Lose. Project Gutenberg.

Chicago Style (17th ed.) Citation

Davis, Richard Harding. The Man Who Could Not Lose. Project Gutenberg, 1999.

MLA (9th ed.) Citation

Davis, Richard Harding. The Man Who Could Not Lose. Project Gutenberg, 1999.

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