Thomas, Harmon C. A study of trade among developing countries, 1950-1980 an appraisal of the emerging pattern Harmon C. Thomas - Amsterdam, ill. 25cm. Naorth-Holland 1988 - xvi, 242 p. ; 23 cm. - Contributions to economic analysis 170 . Includes index Bibliography: p. 227-237 ISBN: 0444703853 Subjects--Geographic Terms: Developing countries--Commerce