APA (7th ed.) Citation

Hammond, W. A. (2013). Sleep and Its Derangements. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hammond, William A. Sleep and Its Derangements. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Hammond, William A. Sleep and Its Derangements. Project Gutenberg, 2013.

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