00657nam a2200193Ia 4500082002500000100003700025245010500062260002700167300001900194490004900213500000500262690000600267700000500273904003800278952010600316964001700422921000900439999001500448  a379.1120212bUn58.SS  aUNESCO, Statistics, Office of _.  aStatistical study of wastage at school; a study prepared for the International Bureau of Educationb  aParisbThe Auth.c1972  a121p. Appendix  aStudies and surveys in Comparative Education  a  a   a  aInternational Bureau of Education  00104070aISIbISId1998-09-04l0o379.1120212 Un58.SSpDP7436r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8351  c8351d8351