Gordis, Leon <br/><br/>
Epidemiology 

 - 3rd ed. 
 - Philadelphia  Elsevier  2004 
 - xi, 335p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Dewey Class. No.: </label>614.4 GOR