登入選單

返回Google圖書搜尋

Factors Affecting the Yields of Major Crops on Small Farms in the Suata-Taiguaiguay Irrigation District, Aragua State, Venezuela

Carlos Rojas

出版	Cornell Univ., 1968
URL	http://books.google.com.hk/books?id=-fNNAAAAYAAJ&hl=&source=gbs_api