BARKER, D.J.P. Hall, A.J. <br/><br/>
Practical epidemiology 
/[by] D.J.P.Barker, A.J.Hall 
 - 3rd ed. 
 - Edinburgh  ELBS/Churchill Livingstone  1991 
 - 173 p. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>443044274 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>Dewey Class. No.: </label>614.4  / BAR