After Nine Hundred Years: The Background of the Schism Between the Eastern and Western Churches /
- New York: Fordham University Press, 1978, c1959.
- ix, 150 p. ; 22 cm.
Translation of Neuf cents ans après, originally published as v. 1, pt. 1 of L'Eglise et les églises, 1054-1954. Reprint of the ed. published by Fordham University Press, New York.