Cuba's Policy in Africa, 1959–1980 by William M. LeoGrande Berkeley, University of California, Institute of International Studies, 1980. Pp. vii + 82. $4.50.Cuba in Africa edited by Carmelo Mesa-Lago and June S. Belkin University of Pittsburgh, Center for Latin American Studies, 1982.Pp ix + 230. $5.95 paperback.Changing Realities in South Africa: implications for American policy edited by Michael Clough Berkeley, University of California, Institute of International Studies, 1982. Pp. xi + 318. $12.50 paperback.