00808nam0-22002891i-450-99000373066040332120001010000373066FED01000373066(Aleph)000373066FED0100037306620000920d1969----km-y0itay50------baitay-------001yyInvention, growth and welfareA theoretical treatment of technological changeW.NordhausU.S.A.The Mitt Press1969167 p.22cmNordhaus,William D.<1941- >106474ITUNINARICAUNIMARCBK990003730660403321O3.525207DECTSDECTSInvention, growth, and welfare44543UNINAING01