00602nam a2200157Ia 4500008004100000020001800041040001700059082002300076100001900099245003800118260004100156300000900197440003800206500014300244650005700387190328s9999||||xx |||||||||||||| ||und||  a0-04-330225-4  aNITILcNITIL  221sta330.1bS121M  aSachs, I (Ed.) 0aMain trends in economicscI Sachs  aLondonbGeorge Allen and Unwinc1973  a79p.  aMain trends in social sciences; 3  aThis essays was originally published as chapter 4 in "Main trends of research in the social and human science", part I, Mouton/Unesco 1970  aEconomic development-Social aspects; Social sciences