| 其他書名 | Hearings Before the United States House Committee on Government Operations, Subcommittee on Research and Technical Programs, Ninetieth Congress, Second Session, on Sept. 5, 1968 |
| 出版 | U.S. Government Printing Office, 1968 |
| URL | http://books.google.com.hk/books?id=XM5EAQAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |