00844nam a2200253 i 450099100146873970753620020507194022.0950714s1979 us ||| | ||| b10851689-39ule_instLE01312707ExLDip.to MatematicaengAMS 03C05Gratzer, George A.41999Universal algebra /George Gratzer2nd edNew York :Springer-Verlag,1979581 p. ;24 cmUniversal algebras.b1085168921-09-0628-06-02991001468739707536LE013 03C GRA11 C.2 (1979)22013000031910le013-E0.00-l- 02020.i1096316928-06-02Universal algebra348702UNISALENTOle01301-01-95ma -engus 01