APA (7th ed.) Citation

Catholic Association for International Peace., Ryan, J. A., & McMahon, F. E. (1940). The obligation of Catholics to promote peace. The Catholic Association for International Peace.

Chicago Style (17th ed.) Citation

Catholic Association for International Peace., John Augustine Ryan, and Francis E. McMahon. The Obligation of Catholics to Promote Peace. Washington, D.C.: The Catholic Association for International Peace, 1940.

MLA (9th ed.) Citation

Catholic Association for International Peace., et al. The Obligation of Catholics to Promote Peace. The Catholic Association for International Peace, 1940.