Affleck, E. L. (1993). Affleck's list of sternwheelers and other larger steamboats working on the Columbia River waterways north of the 47th parallel of latitude 1865-1965. Alexander Nicolls Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAffleck, Edward L. Affleck's List of Sternwheelers and Other Larger Steamboats Working on the Columbia River Waterways North of the 47th Parallel of Latitude 1865-1965. Vancouver, B.C.: Alexander Nicolls Press, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAffleck, Edward L. Affleck's List of Sternwheelers and Other Larger Steamboats Working on the Columbia River Waterways North of the 47th Parallel of Latitude 1865-1965. Alexander Nicolls Press, 1993.
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