Merrill, Ray M. <br/><br/>
Introduction to epidemiology / 
Ray M. Merrill. 
 - 5th ed. 
 - Sudbury, Mass. :  Jones and Bartlett Publishers,  2010. 
 - xi, 417 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9780763766221  RM257.72 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods.<br/>Epidemiology.