Gratzer, George A Universal algebra George Grčatzer - 2d ed - New York Springer-Verlag c1979 - xviii, 581 p ill 24 cm Contine bibliogr. si index Contine bibliogr. si index ISBN: 0387903550 LCCN: 78012113 Subjects--Topical Terms: Algebra, Universal Dewey Class. No.: 512