APA (7th ed.) Citation

Wallace, F. L., & Emshwiller, E. (2010). Tangle Hold. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wallace, F. L., and Ed Emshwiller. Tangle Hold. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Wallace, F. L., and Ed Emshwiller. Tangle Hold. Project Gutenberg, 2010.

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