APA (7th ed.) Citation

Von Hutten, B., & Justice, M. (2005). The Halo. Project Gutenberg.

Chicago Style (17th ed.) Citation

Von Hutten, Bettina, and Martin Justice. The Halo. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Von Hutten, Bettina, and Martin Justice. The Halo. Project Gutenberg, 2005.

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