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_bspa
_cUPN
049 _aC
050 4 _aQ181
_bI5.7
245 0 0 _aInternational handbook of science education /
_ced. by Barry K. Fraser.
260 _aLondon :
_bKluwer,
_c1998.
300 _a2 v.
490 _aKluwer international handbooks of education ;
_v2
650 4 _aCiencia
_xEstudio y enseƱanza
_96354
700 1 _aFraser, Barry J.,
_eed.
905 _aLibro
942 _2lcc
_cLIBRO