| 其他書名 | Statement of John W. Hill, Jr. ... Before the Subcommittee on Water Resources, Transportation, and Infrastructure, Committee on Environment and Public Works, United States Senate |
| 出版 | U.S. General Accounting Office, 1990 |
| URL | http://books.google.com.hk/books?id=zTwpAQAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |