Baumslag, B. <br/><br/>
Schaum's outline series   : theory and problems of 
B.Baumslag and B. Chandler 
 -  McGraw-Hill Book Company,  1968. 
 - 278p. 
<br/><br/><label>ISBN: </label>070041245 
<br/><br/><label>Dewey Class. No.: </label>512  / BAS