其他書名 | Overlooked Variables in Formulating Public Policy on Soil Conservation and Water Quality : an Organized Symposium |
出版 | Natural Resource Economics Division, Economic Research Service, U.S. Department of Agriculture, 1982 |
URL | http://books.google.com.hk/books?id=32K_l7KJkC4C&hl=&source=gbs_api |