McMacken, J. G. (1927). Lake Lewis and flood-waters of Okanogan ice-sheets. Geological Pub. Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMcMacken, Joseph G. Lake Lewis and Flood-waters of Okanogan Ice-sheets. Des Moines, Iowa: Geological Pub. Co., 1927.
एमएलए (8वां संस्करण) प्रशस्ति पत्रMcMacken, Joseph G. Lake Lewis and Flood-waters of Okanogan Ice-sheets. Geological Pub. Co., 1927.
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