00917nam0-22003131i-450-99000051120040332120080222105522.0000051120FED01000051120(Aleph)000051120FED0100005112020020821d1940----km-y0itay50------baenga-------001yyPrinciples of direct-current machinesAlexander S. Langsdorf5th ed.New York ; LondonMcGraw-Hill1940746 p.ill.24 cmElectrical engineering textsMacchine elettriche a corrente continua621.313'2Langsdorf,Alexander S.27805ITUNINARICAUNIMARCBK99000051120040332110 F I 1272824DINELDINELPrinciples of direct-current machines330430UNINA