APA (7th ed.) Citation

Vincent, H. (2007). Creatures of Vibration. Project Gutenberg.

Chicago Style (17th ed.) Citation

Vincent, Harl. Creatures of Vibration. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Vincent, Harl. Creatures of Vibration. Project Gutenberg, 2007.

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