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by Glanzman, V. M.
Denver, Colo. : U.S. Dept. of the Interior, Geological Survey : Open-File Services Section, Branch of Distribution, U.S. Geological Survey [distributor], 1980
Denver, Colo. : U.S. Dept. of the Interior, Geological Survey : Open-File Services Section, Branch of Distribution, U.S. Geological Survey [distributor], 1980
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