Jekel's epidemiology, biostatistics, preventive medicine, and public health / 
David L. Katz ... [et al.]. 
 - 4th  ed. 
 - Philadelpphia, PA :  Elzevier,  2014. 
 - xiii, 405  p. 
<br/><br/><label>ISBN: </label>1455706587 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology.<br/>Medical statistics.<br/>Medicine, Preventive.<br/>Public health.