Childs, Lindsay. <br/><br/>
Concrete introduction to higher algebra.-2nded. / 
Lindsay N. Childs. 
 - 2nd ed. 
 - New York :  Springer,  c1995. 
 - xv, 522 p. :  ill. ; 
<br/><br/><label>ISBN: </label>0387944842 (acidfree paper) 
<br/><br/><label>Subjects--Index Terms: </label>Algebra 
<br/><br/><label>Universal Decimal Class. No.: </label>512  / CHI