Friis, Robert H; Sellers, Thomas A <br/><br/>
Epidemiology for public health practice/ 4 ed. 

 - 4 
 -  Jones and Bartlett Pub  2009 
 - xxii, 717 p 
<br/><br/><label>ISBN: </label>978-0-7637-5161-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public Health