Roskelley, J. (2014). Paddling the Columbia: A guide to all 1200 miles of our scenic & historical river (First edition.). Mountaineers Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoskelley, John. Paddling the Columbia: A Guide to All 1200 Miles of Our Scenic & Historical River. First edition. Seattle: Mountaineers Books, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRoskelley, John. Paddling the Columbia: A Guide to All 1200 Miles of Our Scenic & Historical River. First edition. Mountaineers Books, 2014.
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