Não informado. (1922). The Journal of Social Forces. University of North Carolina Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of Social Forces. Chapel Hill, NC: University of North Carolina Press, 1922.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of Social Forces. University of North Carolina Press, 1922.
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