Results of the U.S. Geological Survey's Analytical Evaluation Program for standard reference samples distributed in March 1999
Jerry W. Farrar
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Kimberly M. Chleboun
Mark T. Woodworth
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Brooke F. Connor
Jerry W. Farrar
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Ashley M. Copen
Mark T. Woodworth
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Brooke F. Connor
Mark T. Woodworth
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Brooke F. Connor