Were, John M. Intra-regional trade in the preferential trade area (PTA) for Easte rn & Southern Africa: problems and prospects / by by John M. Were . - Kampala, 1992. - v, 56 p. ; 29 cm. Dissertation - Makerere University,1992. Includes bibliographical references (p. 55-56). Subjects--Topical Terms: Trade blocks ----Africa, East.----Trade blocks ----Africa, South.---- Dewey Class. No.: U 380.14 WER