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    Influence of tillage on erosion in western Iowa, USA.

    • Title:Influence of tillage on erosion in western Iowa, USA.
    • Author:Hjelmfelt, A.T. Jr.
    • Found in:Reprints - U.S. Department of Agriculture, Agricultural Research Service. 1989. [507]
    • Descriptions:7 p.
    • Holdings InformationNo holdings available - check at the Circulation Desk.