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1988
Noson, Linda Lawrance, Anthony Qamar, and Gerald W. Thorsen. Washington State Earthquake Hazards In Division of Geology and Earth Resources Information Circular. Vol. 85. Washington Department of Natural Resources, 1988.
1964
Thorsen, Gerald W.. Mineralogy of Black Sands at Grays Harbor, Washington In Division of Mines and Geology Report of Investigations. Vol. 23. Washington Department of Conservation, 1964.