TY - BOOK AU - "UNESCO, International Bureau Of Education" ED - "UNESCO, International Bureau Of Education" TI - A Statistical study of wastage at school T2 - Studies And Sureys In Comparative Education .2 U1 - "T2:898:(B28), L2/UN" PY - 1972/// CY - "Paris," PB - Geneva UNESCO France KW - School KW - Secondary Education ER -