Childs, Lindsay N. <br/><br/>
Concrete introduction to higher algebra 

 - 2nd ed. 
 - New York  Springer  2000 
 - xv, 522p.  24 cm. PB 
 - Undergraduate Texts in Mathematics .
<br/><br/><label>ISBN: </label>8181284135 
<br/><br/><label>Dewey Class. No.: </label>512.7  / CHI