APA (7th ed.) Citation

Durant, W. (2013). Philosophy and The Social Problem. Project Gutenberg.

Chicago Style (17th ed.) Citation

Durant, Will. Philosophy and The Social Problem. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Durant, Will. Philosophy and The Social Problem. Project Gutenberg, 2013.

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