APA (7th ed.) Citation

Sohl, J., & Emshwiller, E. (2010). The Seventh Order. Project Gutenberg.

Chicago Style (17th ed.) Citation

Sohl, Jerry, and Ed Emshwiller. The Seventh Order. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Sohl, Jerry, and Ed Emshwiller. The Seventh Order. Project Gutenberg, 2010.

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