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|---|---|---|---|
| 005 | 20210219152929.0 | ||
| 008 | 991125n 000 0 u | ||
| 035 | _aUPN01000067367 | ||
| 222 | _aSCHOOL SCIENCE AND MATHEMATICS | ||
| 245 | _aChildren's ideas about matter | ||
| 300 | _a240-244 | ||
| 362 | _a91, No. 6, 1991 | ||
| 505 | _aMayo 1992 | ||
| 653 | 0 | _aCLASIFICACION | |
| 653 | 0 | _aCONCEPTOS ERRONEOS | |
| 653 | 0 | _aMATERIA | |
| 904 |
_aAC _b005178 |
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| 905 | _aArticulo | ||
| 999 |
_c63979 _d63979 |
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