APA (7th ed.) Citation

Crabtre, A. D. (2012). The Funny Side of Physic. Project Gutenberg.

Chicago Style (17th ed.) Citation

Crabtre, A. D. The Funny Side of Physic. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Crabtre, A. D. The Funny Side of Physic. Project Gutenberg, 2012.

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