APA (7th ed.) Citation

Wetterau, J. M. (2004). O+F. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wetterau, John Moncure. O+F. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Wetterau, John Moncure. O+F. Project Gutenberg, 2004.

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