Finocchio, Ross. "Nineteenth-Century French Realism". In Heilbrunn Timeline of Art History. New York: The Metropolitan Museum of Art, 2000–. online (October 2004)
Fry, Roger. 1920. "Vision and Design." London: Chatto & Windus. "An Essay in Æsthetics." 11–24. Accessed online on 13 March 2012 at "Roger Fry [=] Vision and design". Archived from the original on 2013-11-14. Retrieved 2017-09-09.
Fry, Roger. 1920. "Vision and Design." London: Chatto & Windus. "An Essay in Æsthetics." 11–24. Accessed online on 13 March 2012 at "Roger Fry [=] Vision and design". Archived from the original on 2013-11-14. Retrieved 2017-09-09.