Torrence, M. E. <br/><br/>
Understanding epidemiology / 
Mary E. Torrence. 
 - USA  Mosby  1997 
 - xx, 180 p. :  ill.; Pbk 
 - Mosby's biomedical science series .
<br/><br/><label>ISBN: </label>9780815188872 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology.
<br/><br/><label>LC Class. No.: </label>RA651  / .T6 1997 
<br/><br/><label>Dewey Class. No.: </label>614.4