APA (7th ed.) Citation

Hough, E., & Keller, A. I. (2004). 54-40 or Fight. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hough, Emerson, and Arthur Ignatius Keller. 54-40 or Fight. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Hough, Emerson, and Arthur Ignatius Keller. 54-40 or Fight. Project Gutenberg, 2004.

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