APA (7th ed.) Citation

Voltaire & Phalen, P. (2009). Micromegas. Project Gutenberg.

Chicago Style (17th ed.) Citation

Voltaire and Peter Phalen. Micromegas. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Voltaire and Peter Phalen. Micromegas. Project Gutenberg, 2009.

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