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Commercial Fertilizers

Alfred Meredith PeterHarrison GarmanJ. N. HarperRobert McDowell AllenWilliam Henry ScherffiusMelville Amasa Scovell

出版	Kentucky Agricultural Experiment Station of the State College of Kentucky, 1904
URL	http://books.google.com.hk/books?id=aM1QAQAAMAAJ&hl=&source=gbs_api