Soennichsen, J. R. (2012). Washington's Channeled Scablands guide: Explore and recreate along the Ice Age Floods National Geologic Trail. Mountaineers Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSoennichsen, John Robert. Washington's Channeled Scablands Guide: Explore and Recreate Along the Ice Age Floods National Geologic Trail. Seattle: Mountaineers Books, 2012.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSoennichsen, John Robert. Washington's Channeled Scablands Guide: Explore and Recreate Along the Ice Age Floods National Geologic Trail. Mountaineers Books, 2012.
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