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Norman E Spahr

Norman E Spahr

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1.
County-Level Estimates of Nitrogen and Phosphorus from Commercial Fertilizer for the Conterminous United States, 1987-2006
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2.
Water Quality in the Upper Colorado River Basin, 1996-98
Publisher: Bibliogov
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₹1,415
Binding:
Paperback
Release:
01 May 2013
Language:
English
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3.
Development and Application of Regression Models for Estimating Nutrient Concentrations in Streams of the Conterminous United States, 1992-2001
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4.
Nutrients in Streams and Rivers Across the Nation 1992-2001
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