APA (7th ed.) Citation

Burgess, G. (2009). The Purple Cow! Project Gutenberg.

Chicago Style (17th ed.) Citation

Burgess, Gelett. The Purple Cow! Project Gutenberg, 2009.

MLA (9th ed.) Citation

Burgess, Gelett. The Purple Cow! Project Gutenberg, 2009.

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