Allen, J. E., Burns, M., & Sargent, S. C. (1986). Cataclysms on the Columbia: A layman's guide to the features produced by the catastrophic Bretz floods in the Pacific Northwest. Timber Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAllen, John Eliot, Marjorie Burns, और Sam C. Sargent. Cataclysms on the Columbia: A Layman's Guide to the Features Produced by the Catastrophic Bretz Floods in the Pacific Northwest. Portland, Or.: Timber Press, 1986.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAllen, John Eliot, et al. Cataclysms on the Columbia: A Layman's Guide to the Features Produced by the Catastrophic Bretz Floods in the Pacific Northwest. Timber Press, 1986.
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