Trattner, W. I. (1979). From poor law to welfare state: A history of social welfare in America (2nd ed.). Free Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTrattner, Walter I. From Poor Law to Welfare State: A History of Social Welfare in America. 2nd ed. New York: Free Press, 1979.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTrattner, Walter I. From Poor Law to Welfare State: A History of Social Welfare in America. 2nd ed. Free Press, 1979.
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