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Inspection of Commercial Fertilizers

George Edward StoneHenri Darwin HaskinsGeorge Henry ChapmanClement L. PerkinsJoseph Farrington MerrillPhilip H. SmithWilliam Penn BrooksGoerge R. PierceLewell Seth WalkerRudolf William Ruprecht

出版	Massachusetts Agricultural Experiment Station, 1910
URL	http://books.google.com.hk/books?id=X8NQAQAAMAAJ&hl=&source=gbs_api