Cohn, P. M. (Paul Moritz) <br/><br/>
Universal algebra 
P. M. Cohn 
 - Rev. ed 
 - Dordrecht  D. Reidel Publishing Company  1981 
 - xv, 412p. ill. 23cm 
 - Mathematics and its applications  v.6 .
<br/><br/>Bibliography: p.381-400 
<br/><br/><label>LCCN: </label>80-29568 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra, Universal