Childs, Lindsay N <br/><br/>
Concrete introduction to higher algebra   
by Lindsay N Childs 
 - 3rd ed 
 - New York  Springer  2009 
 - xiv, 603p 
 - Undergraduate texts in mathematics .
<br/><br/><label>ISBN: </label>9780387745275 
<br/><br/><label>Dewey Class. No.: </label>512  / P091 (UG)