Downie. N M <br/><br/>
Basic statistical methods / 
N M Downie and R W Heath 
 - 3rd ed 
 - New York :  Harper and Row,  1970. 
 - 356p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>300  / DOW.B