Koch, F. (2022). The national parks: Preserving America's wild places (First edition.). First Second.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKoch, Falynn. The National Parks: Preserving America's Wild Places. First edition. New York, NY: First Second, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKoch, Falynn. The National Parks: Preserving America's Wild Places. First edition. First Second, 2022.
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