| 其他書名 | Hearings Before the Special Committee on Aging, United States Senate, Ninetieth Congress, First Session, Washington, D. C. December 5 and 6, 1967 |
| 出版 | U.S. Government Printing Office, 1968 |
| URL | http://books.google.com.hk/books?id=lDew0MBVdVEC&hl=&source=gbs_api |