Mushinsky. Biology and Conservation of North American Tortoises. Johns Hopkins University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMushinsky. Biology and Conservation of North American Tortoises. Johns Hopkins University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMushinsky. Biology and Conservation of North American Tortoises. Johns Hopkins University Press.
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