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Authors Norris, Patricia E. Remove constraint Norris, Patricia E.: Norris, Patricia E. Series Agricultural economic report Remove constraint Agricultural economic report: Agricultural economic report

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1. A comparison of tillage systems : for reducing soil erosion and water pollution

Author:: Christensen, L. A. (Lee A.), 1938 , Norris, Patricia E. , United States. Dept. of Agriculture. Economic Research Service.
Subject:: Tillage -- United States. , Soil conservation -- United States. , Water -- Pollution -- United States.
Physical description:: iv, 27 p.
Collection:: Rural Development Publications Collection
Series:: Agricultural economic report
Part Of:: Agricultural economic report