McNeil Don <br/><br/>
Epidemiological Research Methods 

 -  New York:John Wiley & Sons  1996 
 - 305pgs 
 - Epidemiology 
<br/><br/><label>ISBN: </label>0-471-96196-5 
<br/><br/><label>Nat. Bib. No.: </label>003449 
<br/><br/><label>Dewey Class. No.: </label>616-036.22 M15