000 00340nam a2200133 i 4500
008 991231s1997 sp g spa
080 1 _a3.7
100 _aMARTINEZ BELTRAN, J.M.
245 0 _aAPRENDO A PENSAR
260 _aMADRID
_b:BRUÑO
_c,1997
500 _aP: L
650 _aPEDAGOXIA
997 _dFalta ISBN
_e1