00843nam a2200241 i 450099100146865970753620020507194022.0950103s1968 us ||| | eng b10851677-39ule_instLE01312706ExLDip.to MatematicaengAMS 03C05Gratzer, George A.41999Universal algebra /by George GratzerPrinceton, NJ :Van Nostrand Reinhold Co.,c1968xiii, 368 ;24 cmUniversal algebras.b1085167721-09-0628-06-02991001468659707536LE013 03C GRA11 C.1 (1968)12013000018034le013-E0.00-l- 01010.i1096315728-06-02Universal algebra348702UNISALENTOle01301-01-95ma -engus 01