00286nam a2200109Ia 450000500170000000800410001710000200005824500630007826000110014130000110015265000130016320260328104345.0260328s9999||||xx |||||||||||||| ||und||  aAyala, Ulpiano  0aLa Problematica Urbana hoy en Colombiana  /cUlpiano Ayala  bCinep   a332 p.  aCOLOMBIA