000 00651nam a2200205 a 4500
005 20210219152944.0
008 991125n 000 0 eng u
035 _aUPN01000068690
100 _aPOSADA, Jose Maria de
222 _aSCIENCE EDUCATION
245 _aConceptions of high school students concerning the interal structure of metals and their electric conduction : structure and evolution
260 _aEUA
300 _a445-467
362 _a1997 vOL. 81, No. 4, jul.
653 0 _aACTIVIDADES CIENTIFICAS
653 0 _aEDUCACION MEDIA SUPERIOR
653 0 _aINVESTIGACION CIENTIFICA
904 _aAC
_b006501
905 _aArticulo
999 _c64665
_d64665