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Effect of Hormodin A, a Growth Substance, on the Rooting of Cuttings

Marcus A. MaxonHarry Wyatt RicheyBethel Stewart Pickett

出版	Agricultural Experiment Station, Iowa State College of Agriculture and Mechanic Arts, 1940
URL	http://books.google.com.hk/books?id=F4MkAQAAMAAJ&hl=&source=gbs_api