000 00507nam a2200205 a 4500
005 20210219153432.0
008 991125n 000 0 eng u
035 _aUPN01000099317
100 _aJOHNS, Kenneth W.
222 _aGRADE TEACHER
245 _aSeltzer tablets and pop bottles
300 _a117-119
362 _a1968 85, no. 6 feb.
653 0 _aCIENCIA
653 0 _aEDUCACION PRIMARIA
653 0 _aENSEƑANZA
653 0 _aEXPERIMENTOS
904 _aAC
_b037128
905 _aArticulo
999 _c76760
_d76760