APA (7th ed.) Citation

Thorne, G. (2011). A Butterfly on the Wheel. Project Gutenberg.

Chicago Style (17th ed.) Citation

Thorne, Guy. A Butterfly on the Wheel. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Thorne, Guy. A Butterfly on the Wheel. Project Gutenberg, 2011.

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