Ress, D.G. <br/><br/>
Essential Statistics / 
D.G. Ress. 
 - 2nd ed. 
 - London ;  New York :  Chapman & Hall,  1989. 
 - 258 p. 
 - 519.5 .
<br/><br/>Index: p. 254-258 
<br/><br/><label>ISBN: </label>0-412-32030-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Վիճակագրություն<br/>Title
<br/><br/><label>Dewey Class. No.: </label>519.5