Scheer, R. (2024). Yellowstone & Grand Teton's best nature walks: 29 easy ways to explore the parks' ecology. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रScheer, Roddy. Yellowstone & Grand Teton's Best Nature Walks: 29 Easy Ways to Explore the Parks' Ecology. Portland, Oregon: Timber Press, 2024.
एमएलए (8वां संस्करण) प्रशस्ति पत्रScheer, Roddy. Yellowstone & Grand Teton's Best Nature Walks: 29 Easy Ways to Explore the Parks' Ecology. Timber Press, 2024.
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