Scheer, R. (2022). Oregon and Washington's roadside ecology: 33 easy walks through the region's amazing natural areas. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रScheer, Roddy. Oregon and Washington's Roadside Ecology: 33 Easy Walks Through the Region's Amazing Natural Areas. Portland, Oregon: Timber Press, 2022.
एमएलए (8वां संस्करण) प्रशस्ति पत्रScheer, Roddy. Oregon and Washington's Roadside Ecology: 33 Easy Walks Through the Region's Amazing Natural Areas. Timber Press, 2022.
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