(U.S.), C. A. f. I. P. (1930). Causes of War, and Security, Old and New; preliminary studies presented to the Catholic Association for International Peace by the Committee on Sources of International Enmity and the Europe Committee. Washington, D.C..
Chicago (17e ed.) Bronvermelding(U.S.), Catholic Association for International Peace. Causes of War, and Security, Old and New; Preliminary Studies Presented to the Catholic Association for International Peace by the Committee on Sources of International Enmity and the Europe Committee. Washington, D.C., 1930.
MLA (8e ed.) Bronvermelding(U.S.), Catholic Association for International Peace. Causes of War, and Security, Old and New; Preliminary Studies Presented to the Catholic Association for International Peace by the Committee on Sources of International Enmity and the Europe Committee. Washington, D.C., 1930.