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The Protein and the Maintenance Requirements of Dairy Cattle

Andrew William McKayAnna Shepard LutmanFrank Abiram RichMarshall Baxter CummingsJoseph Lawrence HillsErwin Wheat JenkinsVermont Agricultural Experiment StationG. F. AndersonCharles Howland Jones

出版	Vermont Agricultural Experiment Station, 1922
URL	http://books.google.com.hk/books?id=rUxRAQAAMAAJ&hl=&source=gbs_api