Basic Statistics for behavioral sciences / 
Heiman, Gary W. 
 - 3rd ed. 
 - Boston :  Houghton Mifflin ,  2000. 
 - xxviii,541 p,: 
<br/><br/><label>ISBN: </label>039596251x 
<br/><br/><label>LC Class. No.: </label>QA276.12  / .H44  2000