De Souza, Paulo Ney and <br/><br/>
Berkeley Problems in Mathematics 

 - 2nd 
 - New York  Springer  2001 
 - xiv,535p.  22 cm. PB 
 - Problem Books in Mathematics .
<br/><br/><label>ISBN: </label>3540781188 
<br/><br/><label>Dewey Class. No.: </label>515.076  / SOU