APA (7th ed.) Citation

Huxley, T. H. (2007). Has a Frog a Soul? Project Gutenberg.

Chicago Style (17th ed.) Citation

Huxley, Thomas Henry. Has a Frog a Soul? Project Gutenberg, 2007.

MLA (9th ed.) Citation

Huxley, Thomas Henry. Has a Frog a Soul? Project Gutenberg, 2007.

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