00354nam a2200109Ia 450000500170000008000180001710000280003524501270006326000260019030000100021658300180022620260716043846.0  a05.03.04 L864  aLópez Ospina, Gustavo  aToward building a social pact that orients and ensures a sustainable future with solid social protection for all 2005-2050  bUNESCOaQuitoECc2004  a92 p.  c12/5/07kJOYD