00353nam a2200133Ia 4500082001700000100002000017245002400037250000800061260003600069300003000105500007400135500000500209700000500214  a512bG773.UA  aGratzer, George  aUniversal algebrab  a2nd  aNew YorkbSpringer-Verlagc1979  axviii, 581p. Index. Bibl.  a"Originally published in the University series in Higher Mathematics"  a  a