APA (7th ed.) Citation

Crothers, S. M. (2005). Humanly Speaking. Project Gutenberg.

Chicago Style (17th ed.) Citation

Crothers, Samuel McChord. Humanly Speaking. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Crothers, Samuel McChord. Humanly Speaking. Project Gutenberg, 2005.

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