00678nam a2200157Ia 4500008004100000010001300041040001700054082002400071100002100095245008000116260003300196300001600229440007800245500009200323650010500415190328s9999||||xx |||||||||||||| ||und||  a62-16517  aNITILcNITIL  221sta301.24bH143O  aHagen, Everett E 0aOn the theory of social changebhow economic growth beginscEverett E Hagen  aIllinoisbDorsey Pressc1962  axvii, 557p.  aThe Dorsey series in anthropology and sociology/ed. by Willam Foote Whyte  aA study from the centre for international studies/Massachusetts Institute of Technology  aSocial change; Social problems; Economic development-Sociological aspects; Technological innovations