APA (7e ed.) Bronvermelding

Catholic Association for International Peace (U.S.) Committee on Ethics, Catholic Association for International Peace (U.S.) Joint Policy Committee, McMahon, F. E., & Ryan, J. A. (1940). The obligation of Catholics to promote peace. The Catholic association for international peace.

Chicago (17e ed.) Bronvermelding

Catholic Association for International Peace (U.S.) Committee on Ethics, Catholic Association for International Peace (U.S.) Joint Policy Committee, Francis E. McMahon, en John A. Ryan. The Obligation of Catholics to Promote Peace. Washington, D.C.: The Catholic association for international peace, 1940.

MLA (8e ed.) Bronvermelding

Catholic Association for International Peace (U.S.) Committee on Ethics, et al. The Obligation of Catholics to Promote Peace. The Catholic association for international peace, 1940.