Nie,H.Norman. <br/><br/>
Statistical package for the social sciences :  s.p.s.s. 

 - 2nd  ed. 
 - new york :  book company,  1975. 
 - 675  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>statistical.