Murray, David M. <br/><br/>
Design and analysis of group-randomized trials / 
David M. Murray 
 - New York :  Oxford University Press,  1998 
 - 467 p. :  ill. ;  25 cm. 
 - Monographs in epidemiology and biostatistics  v.27 .
<br/><br/><label>ISBN: </label>0195120361  RM261.30 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Randomized Controlled Trials
<br/><br/><label>National Library of Medicine Call No.: </label>W20.5