Friis, Robert H. <br/><br/>
Epidemiology for public health practice 
Robert H. Friis and Thomas A. Sellers 
 - 3rd ed. 
 - Sudbury:  Jones and Bartlett,  2004. 
 -  xvii,616 p. 
<br/><br/> Includes bibliographical references and index 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0763731706 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health personnel
<br/><br/><label>Dewey Class. No.: </label>614.4  / FRE