Lehmann, Erich L <br/><br/>
Nonparametrics  : statistical methods based on ranks / 

 - New York:  Springer,  2006 
 - xvi, 463p. Bibl. Index. 
<br/><br/><label>ISBN: </label>0387352120 
<br/><br/><label>Dewey Class. No.: </label>519.537  / L523.NS