APA (7th ed.) Citation

Powys, J. C. (2004). One Hundred Best Books With Commentary and an Essay on Books and Reading. Project Gutenberg.

Chicago Style (17th ed.) Citation

Powys, John Cowper. One Hundred Best Books With Commentary and an Essay on Books and Reading. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Powys, John Cowper. One Hundred Best Books With Commentary and an Essay on Books and Reading. Project Gutenberg, 2004.

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