| 其他書名 | Hearings Before the Committee on Commerce, United States Senate, Ninety-fourth Congress, Second Session on Ports and Waterways Safety Act of 1972, March 2 and 3, 1976 |
| 出版 | U.S. Government Printing Office, 1976 |
| URL | http://books.google.com.hk/books?id=hzrQAAAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |