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Charles Emory MyersCharles Franklin NollFrank Duane GardnerIssac Thornton OsmondJohn Pogue StewartThomas Forsyth HuntThomas Isaiah MairsWilbur Andrew Cochel

出版	Pennsylvania State College Agricultural Experiment Station, 1909
URL	http://books.google.com.hk/books?id=981PAQAAMAAJ&hl=&source=gbs_api