Affleck, E. L. (1973). Sternwheelers, sandbars, and switchbacks: A chronicle of steam transportation in the British Columbia waterways of the Columbia River system 1865-1965 (Rev. and enlarged ed.). Alexander Nicolls Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAffleck, Edward L. Sternwheelers, Sandbars, and Switchbacks: A Chronicle of Steam Transportation in the British Columbia Waterways of the Columbia River System 1865-1965. Rev. and enlarged ed. Vancouver: Alexander Nicolls Press, 1973.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAffleck, Edward L. Sternwheelers, Sandbars, and Switchbacks: A Chronicle of Steam Transportation in the British Columbia Waterways of the Columbia River System 1865-1965. Rev. and enlarged ed. Alexander Nicolls Press, 1973.
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