Norusis, Marija J. <br/><br/>
The SPSS guide to data analysis/ 

 - USA;  SPSS Inc.  1990. 
 - 470p.:  ill.  23 cm. 
<br/><br/>include index. 
<br/><br/><label>ISBN: </label>0131780964 
<br/><br/><label>LC Class. No.: </label>HA32  / .N82 1990