登入選單

返回Google圖書搜尋

A Preliminary Investigation Into the Use of Returns to Cash and Energy Investments as Measures of Land Productivity

Alexander E. A. Schumacher

出版	Thesis (M.Sc.)--McGill University, 1974
URL	http://books.google.com.hk/books?id=c9t0nQEACAAJ&hl=&source=gbs_api