APA (7th ed.) Citation

Hasse, H. (2010). One Purple Hope! Project Gutenberg.

Chicago Style (17th ed.) Citation

Hasse, Henry. One Purple Hope! Project Gutenberg, 2010.

MLA (9th ed.) Citation

Hasse, Henry. One Purple Hope! Project Gutenberg, 2010.

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