** The Millennium Edition ** by Stanley N. Burris and H.P. Sankappanavar To promote the study of Universal Algebra in the new millennium, the text of the out-of-print original Springer-Verlag Graduate Texts in Mathematics edition, 1981, of A Course in Universal Algebra was made available online as a PDF file in the year 2000, thanks to the support of NSERC. During 2012 the on-line version was refo