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1980
Luepke, Gretchen. Bibliography of the Geology of the Oregon-Washington Continental Shelf and Coastal Zone, 1899 to 1978 In U. S. Geological Survey Open-File Report. Vol. 80-467. Department of the Interior, 1980.
Luepke, Gretchen. Bibliography of the Geology of the Oregon-Washington Continental Shelf and Coastal Zone, 1899 to 1978 In U. S. Geological Survey Open-File Report. Vol. 80-467. Department of the Interior, 1980.