Humphreys, L. F. <br/><br/>
Numbers, groups and codes 

 - Cambridge:  Cambridge University Press,  1989 
 - xvi, 288p.;  24cm. 
<br/><br/><label>ISBN: </label>0521359384 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Groups and group theory
<br/><br/><label>Dewey Class. No.: </label>512.2  / HUM