APA (7th ed.) Citation

Harrison, H., & Dongen, H. R. v. (2009). Deathworld. Project Gutenberg.

Chicago Style (17th ed.) Citation

Harrison, Harry, and H. R. van Dongen. Deathworld. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Harrison, Harry, and H. R. van Dongen. Deathworld. Project Gutenberg, 2009.

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