00723nam0-22002531i-450-990001270910403321000127091FED01000127091(Aleph)000127091FED0100012709120000920d????----km-y0itay50------baengCategories of algebraic systemsby Petrich MarioBerlin [etc.]Springer-VerlagNew YorkSpringer-VeLecture Notes in MathematicsPetrich,Mario58119ITUNINARICAUNIMARCBK990001270910403321C-20-(55318603MA1MA1Categories of algebraic systems80904UNINAING01