APA (7th ed.) Citation

Norton, B., & Groesbeck, D. S. (2009). El Diablo. Project Gutenberg.

Chicago Style (17th ed.) Citation

Norton, Brayton, and Dan Sayre Groesbeck. El Diablo. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Norton, Brayton, and Dan Sayre Groesbeck. El Diablo. Project Gutenberg, 2009.

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