APA (7th ed.) Citation

Abbott, J. (2008). Richard I Makers of History. Project Gutenberg.

Chicago Style (17th ed.) Citation

Abbott, Jacob. Richard I Makers of History. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Abbott, Jacob. Richard I Makers of History. Project Gutenberg, 2008.

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