Principe 1996, p. 303. Principe, Walter (1996). "Chenu, M.-D.". In McBrien, Richard P. (ed.). The HarperCollins Encyclopedia of Catholicism. New York: HarperCollins. pp. 303–304. ISBN978-0-06-065338-5. Retrieved 20 June 2021.
Principe 1996, p. 304. Principe, Walter (1996). "Chenu, M.-D.". In McBrien, Richard P. (ed.). The HarperCollins Encyclopedia of Catholicism. New York: HarperCollins. pp. 303–304. ISBN978-0-06-065338-5. Retrieved 20 June 2021.