00925nam0-22003491i-450-9900011742304033210-12-179150-5000117423FED01000117423(Aleph)000117423FED0100011742320000920d1971----km-y0itay50------baengFree rings and their relationsPaul Moritz CohnLondon [etc.]Academic Press1971xvi, 346 p.24 cmL.M.S. Monographs2Anelli associativi ed algebreAnelli liberi512.4Cohn,Paul Moritz45807ITUNINARICAUNIMARCBK990001174230403321C-65-(211874MA1MA116E6016-0216S50Free rings and their relations79698UNINAING01