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Google圖書搜尋
Pennsylvania State University Soil Characterization Laboratory Methods Manual
Nelson C. Thurman
E. J. Ciolkosz
Robert R. Dobos
出版
Agronomy Department, The Pennsylvania State University
, 1994
URL
http://books.google.com.hk/books?id=Il7ZAAAAMAAJ&hl=&source=gbs_api