Rao S <br/><br/>
Introduction to biostatistics : manual for students in health sciences 
Rao S; Richard J 
 - 3 
 - New Delhi  New Delhi, Prentice-Hall  1996 
 - 259p 
<br/><br/><label>ISBN: </label>81-203-1008-X 
<br/><br/><label>Source: </label>Textbook