SPSSx user's guide. 

 - New York :  McGraw Hill,  c1983. 
 - xxv, 806 p. :  ill. 
<br/><br/><label>ISBN: </label>0070465509 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>SPSS X.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods--Computer programs.