Cita APA (7a ed.)

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.

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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