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| 005 | 20210223130613.0 | ||
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| 020 | _a9231013262 | ||
| 035 | _aUPN01000159569 | ||
| 049 | _aUNE | ||
| 080 | _a374 (100) MAC | ||
| 100 | 1 |
_aMacKenzie, Norman, _d1921-2013 _938218 |
|
| 245 | 1 | 0 | _aOpen Learning : Systems and problems in post-secondary education/ Norman Mackenzie, Richmond Postgate, John Scupham. |
| 260 | _aParis : UNESCO, 1975 | ||
| 440 | 0 | _a498 p. | |
| 690 | _aEnseñanza a distancia- Sistemas de enseñanza abierta | ||
| 690 | _aSistemas de enseñanza abierta- Estudio de casos | ||
| 700 | 1 | _aPostgate, Richmond | |
| 700 | _aScupham, John | ||
| 710 | 2 | _aUNESCO | |
| 905 | _aUNESCO | ||
| 999 |
_c131683 _d131683 |
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