00727nam0-22002891i-450-990002570620403321000257062FED01000257062(Aleph)000257062FED0100025706220000920d1965----km-y0itay50------baENGSets and groupsJ. A. Green.LondonRoutledge1965.ix, 84 p.18 cmInsiemiStrutture algebriche516Green,J. A.104479ITUNINARICAUNIMARCBK990002570620403321MXXV-A-52036058MASMASSets and groups33753UNINAING01