Rural Organization in Bukoba District, Tanzania by Jørgen and Karen Rald Uppsala, Scandinavian Institute of African Studies; New York, Africana Publishing Company; 1975. pp. 122. Sw.Kr. 45.00. $15.50 paperback.Land Holding in the Usangu Plain: a survey of two villages in the Southern Highlands of Tanzania by Knut Pipping Uppsala, Scandinavian Institute of African Studies, 1976. pp. 122. Sw.Kr. 5.00 paperback.Problem-Generating Structures in Nigeria's Rural DevelopmentS by Martin Iobozurike Uppsala, Scandinavian Institute of African Studies, 1976. pp. 140. Sw.Kr. 30.00.