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Hog Production and Marketing

Ellsworth Zouave RussellOliver Edwin BakerWilliam Bonar BellSamuel Sutherland BuckleyClarence Edward GibbonsHarvey W. HawthorneGeorge Kirby HolmesGeorge Samuel JamiesonCharles Ford LangworthySamuel Weis MendumOscar Clemen StineArthur Vance SwarthoutClyde William WarburtonR. H. Wilcox

出版	U.S. Government Printing Office, 1923
URL	http://books.google.com.hk/books?id=jp8cKAAACAAJ&hl=&source=gbs_api