APA (7th ed.) Citation

Edgar, J. G. (2008). The Boy Crusaders A Story of the Days of Louis IX. Project Gutenberg.

Chicago Style (17th ed.) Citation

Edgar, John G. The Boy Crusaders A Story of the Days of Louis IX. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Edgar, John G. The Boy Crusaders A Story of the Days of Louis IX. Project Gutenberg, 2008.

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