Roberts, D. (2021). The Bears Ears: A human history of America's most endangered wilderness (First edition.). W.W. Norton & Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoberts, David. The Bears Ears: A Human History of America's Most Endangered Wilderness. First edition. New York, NY: W.W. Norton & Company, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoberts, David. The Bears Ears: A Human History of America's Most Endangered Wilderness. First edition. W.W. Norton & Company, 2021.
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