SPSS Base 12.0 user's guide  
SPSS. 
 - Chicago, Ill. :  SPSS Inc.,  c1998. 
 - xxix, 701 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780131096769 
<br/><br/><label>LCCN: </label>99181166  
<br/><br/><label>Subjects--Uniform Titles: </label><br/>SPSS for Windows.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods--Computer programs.
<br/><br/><label>LC Class. No.: </label>HA32  / .S54