| 其他書名 | Hearing Before the Subcommittee on Social Security of the Committee on Ways and Means, House of Representatives, One Hundred First Congress, Second Session, February 21, 1990 |
| 出版 | U.S. Government Printing Office, 1990 |
| URL | http://books.google.com.hk/books?id=NeIWAAAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |