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A Practical Method of Determining Proper Lengths of Runs, Sizes of Furrow Streams and Spacing of Furrows on Irrigation Lands
其他書名
Provisional
出版U.S. Department of Agriculture, Soil Conservation Service, Research, 1950
URLhttp://books.google.com.hk/books?id=WixSAQAAMAAJ&hl=&source=gbs_api
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