APA (7th ed.) Citation

Chesterton, G. K. (2005). Tremendous Trifles. Project Gutenberg.

Chicago Style (17th ed.) Citation

Chesterton, G. K. Tremendous Trifles. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Chesterton, G. K. Tremendous Trifles. Project Gutenberg, 2005.

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