01042nam--2200361---450-99000322790020331620090424133122.00-7204-2054-7000322790USA01000322790(ALEPH)000322790USA0100032279020090424d1969----km-y0itay0103----baengNL||||||||001yyModels and ultraproductsAn introductiondi J. L. Bell and A. B. SlomsonThird revised printingAmsterdamNorth Holland1969IX, 322 p.22 cmTeoria degli insiemi511.32BELL,John L.119420SLOMSON,Alan B.53054ITsalbcISBD990003227900203316511.32 BEL1589/CBS511.3200100520338 BEL34548/CBS33800224809BKSCIRSIAV69020090424USA011331Models and ultraproducts933052UNISA