000 00366nam a2200145Ia 4500
008 210420s9999 xx 000 0 und d
040 _aBPGM
_bspa
041 _aspa
245 0 _aMATEMATICAS
260 _bLIMUSA
_c1977
336 _2rdacontent
_atexto
_btxt
337 _2rdamedia
_asin mediaciĆ³n
_bn
338 _2rdacarrier
_avolumen
_bnc
942 _cGENERAL
_2ddc
999 _c19453
_d19453