APA (7th ed.) Citation

Hall, H. J. (2007). The Untroubled Mind. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hall, Herbert J. The Untroubled Mind. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Hall, Herbert J. The Untroubled Mind. Project Gutenberg, 2007.

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