| 其他書名 | Issues in the Reauthorization of the Clean Water Act : Water Quality |
| 出版 | U.S. Department of Agriculture, Economic Research Service, Resources and Technology Division, 1992 |
| URL | http://books.google.com.hk/books?id=465vZwGptEgC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |