00865cam0-22003131i-450-99000599358040332119980601000599358FED01000599358(Aleph)000599358FED0100059935819980601d1958----km-y0itay50------baengGBy-------001yy<<The >>sources of inventionJohn Jewkes, David Sawers, Richard StillermanLondonMacMillanc1958XII, 428 p.22 cm346.0720itaJewkes,John127249Sawers,David127994Stillerman,Richard127995ITUNINARICAUNIMARCBK990005993580403321VIII I 32053849FGBCFGBCSources of invention47795UNINA