Dowdy, S. M. <br/><br/>
Statistics for research / 
Shirley Dowdy and Stenley Wearden 
 - 2nd ed. 
 - New York :  John Wiley & Sons,  1991 
 - 629 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0471857033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics