RCA III, fate and transport of nutrients phosphorus /Format: [electronic resource] :
Author: Sharpley, Andrew N.
Publisher: [Washington, D.C.] : U.S. Dept. of Agriculture, Natural Resources Conservation Service,
Date: [1995] This title can be found in 2 Iowa libraries.
RCA III, fate and transport of nutrients nitrogen /Format: [electronic resource] :
Author: Follett, R. F.
Publisher: [Washington, D.C.] : U.S. Dept. of Agriculture, Natural Resources Conservation Service,
Date: [1995] This title can be found in 2 Iowa libraries.
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