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1by Leib, Kenneth J.“...[U.S. Dept. of the Interior, U.S. Geological Survey],...”
Published 2003
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2Published 2007“...U.S. Dept. of the Interior, U.S. Geological Survey,...”
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3by Butler, David L. (David Louis), 1946-“...[.S. Dept. of the Interior], U.S. Geological Survey,...”
Published 1996
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Government Document eBook