00793nam0-22002891i-450-99000694045040332120010727000694045FED01000694045(Aleph)000694045FED0100069404520010727d1949----km-y0itay50------baengUSy-------001yyCompetition among the fewoligopoly and similar market structuresWilliam FellnerNew YorkA. Knopp1949IX, 328 p.24 cm33020itaFellner,William103334ITUNINARICAUNIMARCBK990006940450403321XV H 58752761FGBCFGBCCompetition among the few464152UNINA