Medical surveys and clinical trials:  some methods and applications of group research inn medicine/ 
edited by L.J. Witts 
 - London:  Oxford University Press,  c1959 
 - x, 328 p.;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label> Rs. 35.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine--Research<br/>Operations research<br/>Group work in research
<br/><br/><label>Dewey Class. No.: </label>619