Bretz, J. H. (1959). Washington's channeled scabland. Division of Mines and Geology, Washington Dept. of Conservation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBretz, J. Harlen. Washington's Channeled Scabland. Olympia: Division of Mines and Geology, Washington Dept. of Conservation, 1959.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBretz, J. Harlen. Washington's Channeled Scabland. Division of Mines and Geology, Washington Dept. of Conservation, 1959.
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