Downie, N. M. <br/><br/>
Basic statistical methods / 
N. M. Downie and R.W . Heath. 
 - 5th ed. 
 - New York :  Harper and Row,  c1983. 
 - vii, 371p.: ill; 25cm. 
<br/><br/> Includes bibliography and index 
<br/><br/><label>ISBN: </label>9710805037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences--Statistical Methods<br/>Statistics