| 000 | 00421cam a22001097a 4500 | ||
|---|---|---|---|
| 008 | 180718b1967 xxu||||| |||| 00| 0 eng d | ||
| 082 | _aW948084x73 | ||
| 245 |
_aResearch in instructional television and film _cby Department of Health, Education, and Welfare, United States |
||
| 260 |
_aWashington _bGovernment Printing Office _c1967 |
||
| 300 | _a216+p. | ||
| 700 | _aUnited States.Department of Health, Education, and Welfare | ||
| 999 |
_c498694 _d498694 |
||