| 其他書名 | Committee on Science and Astronautics, U.S. House of Representatives, Ninety-second Congress, Second Session |
| 出版 | U.S. Government Printing Office, 1973 |
| URL | http://books.google.com.hk/books?id=GKvz1QmIKJIC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |