00368nam a2200109Ia 450000500170000000800410001702000180005805000260007610000150010224501020011726000390021920251229192503.0251229s9999    xx            000 0 und d  a9780821373422  aAFR LC 146.8 .A357T73  aBregman,J. 0aTransitions in secondary education in sub-saharan africabEquity and efficence issues.cJ Bregman  aWashilngtonb The world bankc2008