APA (7th ed.) Citation

Wallace, F. L., & Emshwiller, E. (2010). Accidental Flight. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wallace, F. L., and Ed Emshwiller. Accidental Flight. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Wallace, F. L., and Ed Emshwiller. Accidental Flight. Project Gutenberg, 2010.

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