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Report of Analyses of Samples of Commercial Fertilizers Collected by the Commissioner of Agriculture During 1917

Fred Carlton StewartJames Duncan BrewJoseph Worcester WellingtonMancel Thornton Munn

出版	New York Agricultural Experiment Station, 1917
URL	http://books.google.com.hk/books?id=TstQAQAAMAAJ&hl=&source=gbs_api