00318nam a2200097Ia 4500082002000000100011400020245003400134260003800168300000900206500000500215  a338.96bUn58.EP  aUnited Nations. Economic Commission for Africa. Working Party on Economic and Social Development, Addis Ababe  aEconomic planning in Africab  aAddis AbababUnited Nationsc1962  a40p.  a