APA (7th ed.) Citation

Pohl, F., & Emshwiller, E. (2007). The Day of the Boomer Dukes. Project Gutenberg.

Chicago Style (17th ed.) Citation

Pohl, Frederik, and Ed Emshwiller. The Day of the Boomer Dukes. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Pohl, Frederik, and Ed Emshwiller. The Day of the Boomer Dukes. Project Gutenberg, 2007.

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