Proceedings of Conference on the implementation problems of economic development plans and Government decisions in the countries of Black Africa (3-7 March, 1969). Volume I
Proceedings of Conference on the implementation problems of economic development plans and Government decisions in the countries of Black Africa (3-7 March, 1969). Volume 2
Proceedings of Conference on the implementation problems of economic development plans and Government decisions in the countries of Black Africa (3-7 March, 1969). Volume 3