00782nam0-22002891i-450-990002558570403321000255857FED01000255857(Aleph)000255857FED0100025585720000920d1962----km-y0itay50------baENGSets, relations, and functionsJames F. GrayNew YorkHolt Rinehart and Winston1962viii, 143 p.25 cmInsiemiStrutture algebriche516Gray,James F.104170ITUNINARICAUNIMARCBK990002558570403321MXXV-A-1881008MASMASSets, relations, and functions437007UNINAING01