APA (7th ed.) Citation

Butler, E. P., & Booth, H. (2013). The Jack-Knife Man. Project Gutenberg.

Chicago Style (17th ed.) Citation

Butler, Ellis Parker, and Hanson Booth. The Jack-Knife Man. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Butler, Ellis Parker, and Hanson Booth. The Jack-Knife Man. Project Gutenberg, 2013.

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