| 000 | 00439nam a2200157 a 4500 | ||
|---|---|---|---|
| 005 | 20210219153226.0 | ||
| 008 | 991125n 000 0 spa u | ||
| 035 | _aUPN01000084601 | ||
| 100 | 1 | _aMayor, Federico | |
| 222 | _aEL CORREO DE LA UNESCO | ||
| 245 | _aLa formación cientÃfica es una de las claves del desarrollo sostenible | ||
| 300 | _a38-39 | ||
| 362 | _a1997 Vol. 50, no. 11 | ||
| 904 |
_aAC _b022412 |
||
| 905 | _aArticulo | ||
| 999 |
_c71356 _d71356 |
||