Outerelo, Enrique and Ruiz , jesus M. <br/><br/>
Mapping degree theory     

 - Providence  American Mathematical Society  2012 
 - x, 244p. Bibl. Index. 
 - Graduate studies in Mathematics    v. 108 .
<br/><br/>  
<br/><br/><label>ISBN: </label>9780821887141 
<br/><br/><label>Dewey Class. No.: </label>515.72  / Ou93.MD