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61by Love, S. K. (Samuel Kenneth), 1903-1995“...United States Department of the Interior, Geological Survey,...”
Published 1958
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62by Wells, J. V. B.“...United States Department of the Interior, Geological Survey,...”
Published 1959
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63Published 1949“...United States Department of the Interior, Geological Survey,...”
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64Published 1951“...United States Department of the Interior, Geological Survey,...”
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65by Bugliosi, Edward F.“...United States Department of the Interior, Geological Survey,...”
Published 1987
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