00671nam0-22002531i-450-990001134580403321000113458FED01000113458(Aleph)000113458FED0100011345820000920d1970----km-y0itay50------baengAspects of Modern Logicby Beth E.W.Dordrecht (NL)Reidel1970Synthese LibraryBeth,Evert Willem158977ITUNINARICAUNIMARCBK990001134580403321C-25-(3211895MA1MA1Aspects of Modern Logic345338UNINAING01