00309cam a2200169   450000500170000024500410001702000050005810000270006304400050009025000050009504100080010030000050010850000050011383000050011826000090012308200070013220260711133814.0  aLa reforma educativa salvadoreñab  a  aEscamilla, Manuel Luis  a  a  aspa  a  a  v  abc  ab