Raamatud ROBERT M. HIRSCH
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Comparison of Two Regression-Based Approaches for Determining Nutrient and Sediment Fluxes and Trends in the Chesapeake Bay Watershed
ROBERT M. HIRSCH, Douglas Moyer, Kenneth Hyer
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Nitrate in the Mississippi River and Its Tributaries, 1980?2010 An Update
Robert M. Hirsch, Jennifer Murphy, Lori A. Sprague
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