| 000 | 00443cam a22001217a 4500 | ||
|---|---|---|---|
| 008 | 180718b1963 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aA2:O35 Un3 | ||
| 100 | _aHeber, Rick | ||
| 245 |
_aBibliography of world literature on mental retardation _cby Rick Heber and others |
||
| 260 |
_aWashington, D.C. _bDepartment of Health, Education and Welfare _c1963 |
||
| 300 | _a564+p. | ||
| 700 | _aUnited States. Department of Health, Education and Welfare | ||
| 999 |
_c487255 _d487255 |
||