000 00415nam a22001817a 4500
040 _aISFD N° 12
082 _a371.1
_bFON
240 _aMatematica 1
250 _a1a ed .
260 _aBs As
_bSM
_c2013
300 _a152 p.
690 _amatematica primaria 1
942 _2ddc
_cLIB
999 _c5151
_d5151