| 000 | 00553nam a2200181 a 4500 | ||
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| 005 | 20240920064213.0 | ||
| 008 | 991125c1962 was 000 0 eng u | ||
| 035 | _aUPN01000007498 | ||
| 049 | _aCG | ||
| 050 | 4 |
_aLB1043 _bP6.3 |
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| 100 | 1 |
_aPowell, John Walker, _d1904- |
|
| 245 | 1 | 0 |
_aChannels of learning : _bthe story of educational television / _cJohn Walker Powell. |
| 260 |
_aWashington : _bPublic Affairs, _cc1962. |
||
| 300 | _ax, 178 p. | ||
| 650 | 4 |
_aEducación _zEstados Unidos _9803 |
|
| 650 | 4 |
_aEnseñanza audiovisual _913757 |
|
| 905 | _aLibro | ||
| 999 |
_c7498 _d7498 |
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