APA (7th ed.) Citation

Freeman, R. A. (2003). The Vanishing Man A Detective Romance. Project Gutenberg.

Chicago Style (17th ed.) Citation

Freeman, R. Austin. The Vanishing Man A Detective Romance. Project Gutenberg, 2003.

MLA (9th ed.) Citation

Freeman, R. Austin. The Vanishing Man A Detective Romance. Project Gutenberg, 2003.

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