Bergen, P. J. (1934). The salvation of human society. National Council of Catholic Men.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBergen, Peter J. The Salvation of Human Society. Washington: National Council of Catholic Men, 1934.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBergen, Peter J. The Salvation of Human Society. National Council of Catholic Men, 1934.
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