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2by U. S. Army Snow, Ice and Permafrost Research Establishment“...Wilmette, Ill. : U. S. Army Snow, Ice and Permafrost Research Establishment...”
Published 1950
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3by University of Minnesota. Engineering Experiment Station., U.S. Army Snow, Ice, and Permafrost Research Establishment.“...St. Paul, Minn. : Snow, Ice, and Permafrost Research Establishment, Corps of Engineers, U.S. Army...”
Published 1950
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