GORDIS, Leon. <br/><br/>
Epidemiology 

 - 2nd ed. 
 - New york  W. B. Saudes Company  2000 
 - xii,308p. 
<br/><br/><label>ISBN: </label>0-7216-8338-X 
<br/><br/><label>Dewey Class. No.: </label>614.4