SPSS for windows advanced Release 6.0 
Norusis, Marija J. 
 -  SPSS Incorporated.  1993 
 - 578 pages. 
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<br/><br/><label>ISBN: </label>0-13-178823-X 
<br/><br/><label>Dewey Class. No.: </label>300.285369 N889 1993