Sloan. Darwin in the Twenty-First Century. University of Notre Dame Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSloan. Darwin in the Twenty-First Century. University of Notre Dame Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSloan. Darwin in the Twenty-First Century. University of Notre Dame Press.
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