| 其他書名 | Hearing Before the Committee on Science and Technology, U.S. House of Representatives, Ninety-fifth Congress, Second Session, January 25, 1978 |
| 出版 | U.S. Government Printing Office, 1978 |
| URL | http://books.google.com.hk/books?id=R5sHyub9e4IC&hl=&source=gbs_api |