| 其他書名 | Issues and Recommendations for Progress |
| 出版 | Center for Environmental Research Information, Office of Research and Development, U.S. Environmental Protection Agency, 1994 |
| URL | http://books.google.com.hk/books?id=bK9goVIBZTQC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |