Kvatum, L., & Pokrovskaya, L. (2012). Saving Yasha: The incredible true story of an adopted moon bear. National Geographic Society ; Publishers Group UK [distributor].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKvatum, Lia, और Liya Pokrovskaya. Saving Yasha: The Incredible True Story of an Adopted Moon Bear. Washington, D.C. : Enfield: National Geographic Society ; Publishers Group UK [distributor], 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKvatum, Lia, और Liya Pokrovskaya. Saving Yasha: The Incredible True Story of an Adopted Moon Bear. National Geographic Society ; Publishers Group UK [distributor], 2012.
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