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Commercial Fertilizers

Harrison GarmanHenry Ernest CurtisJ. O. LaBachJacob Hiram ArnoldRobert GrahamWalter Sewell AndersonWilliam Durrett NichollsJohn Julian HooperN. M. CregorR. L. PontiusWilliam Herbert SimmonsArthur Louis Brueckner

出版	Kentucky Agricultural Experiment Station, University of Kentucky, 1916
URL	http://books.google.com.hk/books?id=sv7XAQAACAAJ&hl=&source=gbs_api