APA (7th ed.) Citation

Merriam, G. S. (2007). The Chief End of Man. Project Gutenberg.

Chicago Style (17th ed.) Citation

Merriam, George Spring. The Chief End of Man. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Merriam, George Spring. The Chief End of Man. Project Gutenberg, 2007.

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