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

 - 3rd 
 - Philadelphia, Pa. :  Elsevier Saunders,  2004. 
 - xi, 335 p. :    ill. 25 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0721603262 9780721603261 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology.<br/>Epidemiologic Methods.<br/>Public Health