Epidemiology:  an introduction 
Graham, Moon ... [et al.]. 
 - Philadelphia  Open University Press  2000 
 - xii, 190p. 
<br/><br/><label>ISBN: </label>0335200125 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>LC Class. No.: </label>RA651  / .E65 2000