登入選單

返回Google圖書搜尋

Economic Aspects of Irrigation in the Western Cornbelt Fringe with Special Reference to the Proposed Sargent Reclamation Project in Central Nebraska

Karl Gertel

出版	Iowa State College, 1954
URL	http://books.google.com.hk/books?id=rMpIOAAACAAJ&hl=&source=gbs_api