000 00391naa a22001094a 4500
001 CR219972
040 _aveucat
_cveucat
041 _aspa
100 _aHALFHILL, TOM
245 _aCOMPUTACION ECONOMICA
942 _2lcc
_cART
773 _aBYTE VENEZUELA
999 _c109676
_d109676