Markle, S. (2017). The great leopard rescue: Saving the Amur leopards. Millbrook Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMarkle, Sandra. The Great Leopard Rescue: Saving the Amur Leopards. Minneapolis: Millbrook Press, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMarkle, Sandra. The Great Leopard Rescue: Saving the Amur Leopards. Millbrook Press, 2017.
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