Downie, N. M.  1910- <br/><br/>
Basic statistical methods / 
N. M. Downie and R. W. Heath 
 - 3d ed. 
 - New York :  Harper & Row,  1970 
 - xi, 356 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography: p. 349-350. 
<br/><br/><label>LCCN: </label>71-098197 //r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics