APA (7th ed.) Citation

Optic, O. (2008). Make or Break or, The Rich Man's Daughter. Project Gutenberg.

Chicago Style (17th ed.) Citation

Optic, Oliver. Make or Break or, The Rich Man's Daughter. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Optic, Oliver. Make or Break or, The Rich Man's Daughter. Project Gutenberg, 2008.

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