Abelson. Men in Place. University of Minnesota Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbelson. Men in Place. University of Minnesota Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAbelson. Men in Place. University of Minnesota Press.
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