Gerstman, B. Burt <br/><br/>
Epidemiology kept simple  an introduction to traditional and modern epidemiology 
B. Burt Gerstman 
 - 3rd 
 - UK  Wiley- Blackwell  2013 
 - xvi, 461p. 
<br/><br/><label>ISBN: </label>9781444336085  US