000 00262nam a2200121Ia 4500
001 572
008 161209s9999 xx 000 0 und d
020 _a9789582401603
100 1 _aOscar Collazos
245 1 0 _ala ballena varada
260 _bAlfaguara
942 _cCA
999 _c7680
_d7680