Collins, J. D. (1972). The Catholic Worker Movement in the nineteen thirties.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCollins, Joseph Daniel. The Catholic Worker Movement in the Nineteen Thirties. 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCollins, Joseph Daniel. The Catholic Worker Movement in the Nineteen Thirties. 1972.
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