SIEGEL,Sidney <br/><br/>
Non Parametric statistics for the behavioural sciences 

 - 2nd Ed.- 
 - New York.  McGraw-Hill Books Co.  1988 
 - (xxiii),39 
<br/><br/><label>ISBN: </label>71003266 
<br/><br/><label>Dewey Class. No.: </label>519.5