APA (7th ed.) Citation

Bolton, S. K. (2011). Famous Men of Science. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bolton, Sarah Knowles. Famous Men of Science. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Bolton, Sarah Knowles. Famous Men of Science. Project Gutenberg, 2011.

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