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Physical and Chemical Characteristics of the Soils from the Erosion Experiment Stations
Howard E. Middleton
Clarence Sheldon Slater
Horace Greeley Byers
出版
U.S. Department of Agriculture
, 1932
URL
http://books.google.com.hk/books?id=836ezwENE_MC&hl=&source=gbs_api
EBook
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