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研究报告 [2]
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2016 [2]
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USGS mineral-resource assessment of Sagebrush Focal Areas in the western United States [研究报告]
10.3133/fs20163074U.S. Geological Survey. 2016-01-01
Frank, David G. dfrank@usgs.gov;  Frost, Thomas P. tfrost@usgs.gov;  Day, Warren C. wday@usgs.gov;  the USGS SaMiRA team
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Historical files from Federal Government mineral exploration-assistance programs, 1950 to 1974 [研究报告]
10.3133/ds1004U.S. Geological Survey. 2016-01-01
Frank, David G. dfrank@usgs.gov
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