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Some Experiences with Insecticides for the San José Scale

Charles Lyndall PennyClayton Orville SmithClinton Osborne HoughtonFrederick Dixon ChesterCharles Phillip CloseThomas R. Brown

出版	Delaware College Agricultural Experiment Station, 1905
URL	http://books.google.com.hk/books?id=5t1PAQAAMAAJ&hl=&source=gbs_api