| 000 | 00439cam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 180718b1968 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aQx73 Un3 | ||
| 245 | _aThe research program of the social security administration | ||
| 260 |
_aWashington _bUnited States Department Of Health, Education, And Welfar _c1968 |
||
| 300 | _avii,47p | ||
| 650 | _aSocial security - USA | ||
| 700 | _aUnited States Department Of Health , Education, And Welfare | ||
| 999 |
_c414112 _d414112 |
||