Catholic Association for International Peace (U.S.), Ellis, J. T., & Roemer, W. F. (1934). The Catholic Church and peace efforts. The Catholic Association for International Peace.

Catholic Association for International Peace (U.S.), John Tracy Ellis, and William Francis Roemer. The Catholic Church and Peace Efforts. Washington, D.C.: The Catholic Association for International Peace, 1934.

Catholic Association for International Peace (U.S.), et al. The Catholic Church and Peace Efforts. The Catholic Association for International Peace, 1934.