01201cam0-22003731i-450 99000210415040332120200324113812.03718603845000210415FED01000210415(Aleph)000210415FED0100021041520030910d1987----km-y0itay50------baengGBy-------001yy<<The >>role of demand and supply in the generation and diffusion of technical changeColin G. Thirtle, Vernon W.RuttanLondonHarwood Academic Publishers1987VIII, 172 p.22 cmFundamentals of pure and applied economics21Progresso tecnicoAspetti economici338.06422itaThirtle,Colin G.88977Ruttan,Vernon Wesley<1924- >79830ITUNINARICAUNIMARCBK99000210415040332162 338 THIDEPA 6578DAGEAXV O2 29215321DTEDAGEADTERole of demand and supply in the generation and diffusion of technical change1736247UNINAGEN01