Magnus, Wilhelm, <br/><br/>
Combinatorial group theory : presentations of groups in terms of generators and relations 

 - 2ed. 
 - New York:  Dover Publication,  2004. 
 - xii, 444 p.:  22 cm. . 
<br/><br/> Previously published: 2nd rev. ed. New York : Dover Publications, 1976.  
<br/><br/><label>ISBN: </label>9780486438306 
<br/><br/><label>Dewey Class. No.: </label>512.2 MAG