Catholic Association for International Peace (U.S.) Committee on Ethics & Ryan, J. A. (1942). International ethics: A report of the Ethics Committee (4th ed., rev., 1942.). Catholic Association for International Peace.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCatholic Association for International Peace (U.S.) Committee on Ethics और John A. Ryan. International Ethics: A Report of the Ethics Committee. 4th ed., rev., 1942. Washington, D. C.: Catholic Association for International Peace, 1942.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCatholic Association for International Peace (U.S.) Committee on Ethics और John A. Ryan. International Ethics: A Report of the Ethics Committee. 4th ed., rev., 1942. Catholic Association for International Peace, 1942.
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