| 其他書名 | Hearings Before the Subcommittee on Air and Water Pollution of the Committee on Public Works, United States Senate, Ninety-second Congress, First Session, May 17, 18, and June 28, 1971 |
| 出版 | U.S. Government Printing Office, 1971 |
| URL | http://books.google.com.hk/books?id=e5FkXfv4waoC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |