Field epidemiology / 
edited by Michael B. Gregg. 
 - 3rd ed. 
 - Oxford ;  New York :  Oxford University Press,  2008. 
 - xix, 572 p. :  ill., maps ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780195313802 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology.<br/>Epidemics.<br/>Epidemiologic Methods.<br/>Epidemiology--organization & administration.
<br/><br/><label>LC Class. No.: </label>RA651  / .F495 2008 
<br/><br/><label>Dewey Class. No.: </label>