APA (7th ed.) Citation

Gibbs, G., & Frederick, E. (2012). The Maker of Opportunities. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gibbs, George, and Edmund Frederick. The Maker of Opportunities. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Gibbs, George, and Edmund Frederick. The Maker of Opportunities. Project Gutenberg, 2012.

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