000 00551nam a2200181 a 4500
005 20210219153051.0
008 991125n 000 0 eng u
035 _aUPN01000075561
100 _aMitchell, Charles E.
222 _aSCHOOL SCIENCE AND MATHEMATICS
245 _aElementary school mathematics : keeping in step with our society / Charles E. Mitchell
300 _a352-356
362 _a1991 91, no. 8
653 0 _aACTIVIDADES DE APRENDIZAJE
653 0 _aAPLICACION DE LAS MATEMATICAS
904 _aAC
_b013372
905 _aArticulo
999 _c67597
_d67597