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Google圖書搜尋
Phosphorus, Potassium, Calcium and Magnesium Requirements of Maryland Tobacco Grown on Monmouth Soil
John Dominic Bowling
出版
University of Maryland, Agricultural Experiment Station
, 1967
URL
http://books.google.com.hk/books?id=unQpAQAAMAAJ&hl=&source=gbs_api