登入選單

返回Google圖書搜尋

The Economics of Alternative Pasture Systems in Relation to Size of Dairy Herd

Geoffrey Harrision Wollen

出版	Michigan State University of Agriculture and Applied Science. Department of Agricultural Economics, 1959
URL	http://books.google.com.hk/books?id=ObAZsr_D3lcC&hl=&source=gbs_api