APA (7th ed.) Citation

O'Reilly, E. B., & Leslie, A. P. d. (2012). How France Built Her Cathedrals A Study in the Twelfth and Thirteenth Centuries. Project Gutenberg.

Chicago Style (17th ed.) Citation

O'Reilly, Elizabeth Boyle, and A. Paul de Leslie. How France Built Her Cathedrals A Study in the Twelfth and Thirteenth Centuries. Project Gutenberg, 2012.

MLA (9th ed.) Citation

O'Reilly, Elizabeth Boyle, and A. Paul de Leslie. How France Built Her Cathedrals A Study in the Twelfth and Thirteenth Centuries. Project Gutenberg, 2012.

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