APA (7th ed.) Citation

Benson, B. K. (2004). Who Goes There? The Story of a Spy in the Civil War. Project Gutenberg.

Chicago Style (17th ed.) Citation

Benson, B. K. Who Goes There? The Story of a Spy in the Civil War. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Benson, B. K. Who Goes There? The Story of a Spy in the Civil War. Project Gutenberg, 2004.

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