Chow,S.C& Liu, J <br/><br/>
Design and analysis of clinical trials 

 - Second edition 
 -  John Wiley & Sons  2004 
 - 729 Pages 
<br/><br/><label>ISBN: </label>0-471-24985-8 
<br/><br/><label>Dewey Class. No.: </label>S610.72de