1. di Castri, F. 1975. IBP's Legacy to MAB. Intecol Newsletter 5(5):1–2.
2. Cole, N. H. A. 1974. Problems of pollution in Africa: The need for environmental education.In Conference Proceedings on Environment and Development in West Africa. Ghana SCOPE and the Academy of Arts and Sciences, Accra, Ghana, pp. 88–100.
3. Dyasi, H. M., and Cole, N. H. A. 1973. The role of the Science Education Programme for Africa (SEPA) in the learning of integrated science in Africa. Educational Development International 1:133–135.