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Baltimore, Md. [u.a.]: Johns Hopkins Univ. Press, 2000
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Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2011
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Washington: EPA, 2015
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Reston, Va.: U.S. Dept. of the Interior, U.S. Geological Survey, 2009
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Harrisburg, 2013
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Cambridge, Mass: National Bureau of Economic Research, December 2022