Hagen, Everett Einar, On the theory of social change : how economic growth begins : an adaptation / by Everett E. Hagen. - Bombay : Vakils, Feffer and Simons, c1962. - 158 p. ; - Current thought series. . ISBN: BK619 Subjects--Topical Terms: Economic development-Social aspects.-- Dewey Class. No.: 303.4 / On