登入
選單
返回
Google圖書搜尋
Capital-labor Utilization and Substitution in Punjab Agriculture
I. J. Singh
Richard Hollis Day
出版
Department of Agricultural Economics and Rural Sociology, Ohio State University
, 1972
URL
http://books.google.com.hk/books?id=SmsMzwEACAAJ&hl=&source=gbs_api