Burris, Stanley. <br/><br/>
Course in universal algebra   
Stanley Burris, H. P. Sankappanavar. 
 - New York  Springer-Verlag  1981 
 - xvi, 276p. 
 - Graduate Texts in Mathematics  78 .
<br/><br/><label>ISBN: </label>0387905782 
<br/><br/><label>Dewey Class. No.: </label>512  / N81