APA (7th ed.) Citation

Davis, F. C. (2011). Making Your Camera Pay. Project Gutenberg.

Chicago Style (17th ed.) Citation

Davis, Frederick C. Making Your Camera Pay. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Davis, Frederick C. Making Your Camera Pay. Project Gutenberg, 2011.

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