| 000 | 00303nam a2200097Ia 4500 | ||
|---|---|---|---|
| 008 | 200527s9999||||xx |||||||||||||| ||und|| | ||
| 082 | _a616.858 8 MEN | ||
| 245 | 0 | _aMental Retardation: Proceedings of the Association Dec.11 and 12, 1959 NewYork | |
| 264 |
_bHafner Publishing Company _c1969 |
||
| 300 | _a331p. | ||
| 999 |
_c15206 _d15206 |
||