APA (7th ed.) Citation

Lyman, H. M. (2013). Insomnia; and Other Disorders of Sleep. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lyman, Henry M. Insomnia; and Other Disorders of Sleep. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Lyman, Henry M. Insomnia; and Other Disorders of Sleep. Project Gutenberg, 2013.

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