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Studies on Alternative Keeping Systems for Laying Hens in Sweden at the Dept. of Animal Nutrition and Management, Swedish University of Agricultural Sciences, Uppsala, March 1988-October 1991

Ragnar TausonSwedish University of Agricultural Sciences. Dept. of Animal Nutrition and Management

出版	Swedish University of Agricultural Sciences, 1992
URL	http://books.google.com.hk/books?id=shmnMQEACAAJ&hl=&source=gbs_api