Heiman, Gary W. <br/><br/>
Basic statistics for the behavioral sciences / 
Gary W. Heiman. 
 - Boston :  Houghton Mifflin,  1992. 
 - xxvii, 567 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0395607809 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն