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| 005 | 20210219153430.0 | ||
| 008 | 991125n 000 0 u | ||
| 035 | _aUPN01000098512 | ||
| 100 | _aFallon, Michael | ||
| 222 | _aINSTRUCTOR | ||
| 245 | _aScience teaching '90s style | ||
| 300 | _a24-25 | ||
| 362 | _a102, No. 7, 1993 | ||
| 505 | _aDiciembre 1993 | ||
| 653 | 0 | _aCAMBIO EDUCATIVO | |
| 653 | 0 | _aCIENCIA DE LA ESCUELA ELEMENTAL | |
| 653 | 0 | _aINSTRUCCION CIENTIFICA | |
| 904 |
_aAC _b036323 |
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| 905 | _aArticulo | ||
| 999 |
_c76636 _d76636 |
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