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Experiments on the Digestibility of Prickly Pear by Cattle

Burton Percival FlemingElmer Ottis WootonFabián GarcíaRaleigh Frederick Hare

出版	New Mexico College of Agriculture and Mechanic Arts, 1907
URL	http://books.google.com.hk/books?id=zyJRAQAAMAAJ&hl=&source=gbs_api