APA (7th ed.) Citation

Hess, W. L. (2013). Feline Philosophy. Project Gutenberg.

Chicago Style (17th ed.) Citation

Hess, Walter Léon. Feline Philosophy. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Hess, Walter Léon. Feline Philosophy. Project Gutenberg, 2013.

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