Schiefelbein F., Ernesto 1934- In search of the school of the XXI century is the Colombian Escuela Nueva the right pathfinder? / Ernesto Schiefelbein. - Santiago, Chile UNESCO 1991 - 45 p. Subjects--Topical Terms: EDUCACION--COLOMBIA--SIGLO 20 Dewey Class. No.: 370.986 S339