00848nam0-22002891i-450-99000619529040332119980601000619529FED01000619529(Aleph)000619529FED0100061952919980601d1962----km-y0itay50------ba--------00-yy<<The >>Theory of Economic Progressa study of the fundamentals of Economic Development and Cultural ChangeC.E. Ayres.2. ed. -New YorkSchocken Books1962XXIX,, 317 p.24 cm338.9Ayres,Clarence Edwin128651ITUNINARICAUNIMARCBK990006195290403321XV E 12153210FGBCFGBCTheory of Economic Progress648572UNINAGIU01