(1931). The contribution of sociology to social work. Pub. for the New York school of social work by Columbia university press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रThe Contribution of Sociology to Social Work. New York: Pub. for the New York school of social work by Columbia university press, 1931.
एमएलए (9वां संस्करण) प्रशस्ति पत्रThe Contribution of Sociology to Social Work. Pub. for the New York school of social work by Columbia university press, 1931.
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