Armitage, P. <br/><br/>
Statistial Methods in Medical Research  Textual Documents 

 - 4th ed. . 
 - New Delhi  Wiley Eastern Ltd. 
 - 620. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Statistics 
<br/><br/><label>Dewey Class. No.: </label>310  / ARM