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Google圖書搜尋
Methods for Bacteriological Examination of Soils ; Media for Quantitative Determination of Bacteria in Soils
Percy Edgar Brown
出版
Agricultural Experiment Station, Iowa State College of Agriculture and the Mechanic Arts
, 1913
URL
http://books.google.com.hk/books?id=ln4kAQAAMAAJ&hl=&source=gbs_api