APA (7th ed.) Citation

Verance, P. (2014). Perpetual Motion. Project Gutenberg.

Chicago Style (17th ed.) Citation

Verance, Percy. Perpetual Motion. Project Gutenberg, 2014.

MLA (9th ed.) Citation

Verance, Percy. Perpetual Motion. Project Gutenberg, 2014.

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