Penetar, M. P. (1952). The social thought of the Catholic worker on the Negro. Catholic University of America Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPenetar, Michael P. The Social Thought of the Catholic Worker on the Negro. Washington: Catholic University of America Press, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPenetar, Michael P. The Social Thought of the Catholic Worker on the Negro. Catholic University of America Press, 1952.
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