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Google圖書搜尋
Soil Erosion and Some Means for Its Control
R. Burnell Held
Melvin G. Blase
John F. Timmons
出版
State University of science and technology
, 1962
URL
http://books.google.com.hk/books?id=Qo9xGwAACAAJ&hl=&source=gbs_api