The progress of underdeveloped areas / edited by B.F. Hoselitz. - Chicago : University of Chicago Press, 1952, [2nd. Impression 1956] - x, 296 p. ; 24 cm - Harris Foundation lectures ; 1951 . index. Subjects--Topical Terms: Technical assistance. Subjects--Geographic Terms: Developing countries. Dewey Class. No.: 338.91 / PRO 1956