Cohen, F. S. (1940). Immigration and national welfare. League for Industrial Democracy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCohen, Felix S. Immigration and National Welfare. New York City: League for Industrial Democracy, 1940.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCohen, Felix S. Immigration and National Welfare. League for Industrial Democracy, 1940.
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