00515nam a2200145Ia 4500008004100000040001700041082002300058100002400081110006800105245008900173260002400262300000900286440004000295650003400335190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta371.28bU58A  aSanchez, Patricio S  aUnited Nations Educational Scientific and Cultural Organization 0aActivities in the associated project of Vianiba report for 1949cPatricio S Sanchez  aParisbUNESCOc1950  a39p.  aOccasional paper in education; no.7  aEducation; Students-Rating of