APA (7th ed.) Citation

Dick, P. K., & Ebel, A. (2010). The Variable Man. Project Gutenberg.

Chicago Style (17th ed.) Citation

Dick, Philip K., and Alex Ebel. The Variable Man. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Dick, Philip K., and Alex Ebel. The Variable Man. Project Gutenberg, 2010.

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