Conover, W.J. <br/><br/>
Practical nonparametric statistics. 

 - 2da.ed. 
 - New York :   John Wiley,   1980. 
 - 493 p. ; 23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ESTADISTICA
<br/><br/><label>Universal Decimal Class. No.: </label>519.2