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2017 [1]
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Water-quality trends in the nation’s rivers and streams, 1972–2012—Data preparation, statistical methods, and trend results [研究报告]
10.3133/sir20175006U.S. Geological Survey. 2017-01-01
Oelsner, Gretchen P. goelsner@usgs.gov;  Sprague, Lori A. lsprague@usgs.gov;  Murphy, Jennifer C. jmurphy@usgs.gov;  Zuellig, Robert E. rzuellig@usgs.gov;  Johnson, Henry M.;  Ryberg, Karen R. kryberg@usgs.gov;  Falcone, James A. jfalcone@usgs.gov;  Stets, Edward G. estets@usgs.gov;  Vecchia, Aldo V.;  Riskin, Melissa L. mriskin@usgs.gov;  De Cicco, Laura A. ldecicco@usgs.gov;  Mills, Taylor J. tmills@usgs.gov;  Farmer, William H. wfarmer@usgs.gov
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