| 000 | 00356nam a22000977a 4500 | ||
|---|---|---|---|
| 999 |
_c19019 _d19019 |
||
| 245 |
_aColor vision deficiencies in youths 12-17 years of age : _bUnited States _cUS Department of Health, Education, and Welfare |
||
| 260 |
_aMaryland : _bUS Department of Health, Education, and Welfare _c1974. |
||
| 300 | _a34 p. | ||
| 650 |
_aVision problems _vYouths |
||
| 942 | _cRB | ||