Siegel, Sidney.  <br/><br/>
Nonparametric statistics for the behavioral sciences 
/ by Sidney Siegel and John Castellan N. 
 - 2nd ed. 
 - New York :  MacGraw Hill Book Company,  1988. 
 - xxiii, 399 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0-07-057357-3 
<br/><br/><label>Subjects--Index Terms: </label>Psychometrics; Nonparametric statistics; Social sciences - Statistical methods. 
<br/><br/><label>Dewey Class. No.: </label>519.5 SID  / 392