Black, R.H. <br/><br/>
Manual of epidemiology and epidemiological services  R.H. Bolack. 

 - Geneva  s.n.  1968 
 - 223p. 23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology - Research Public health.
<br/><br/><label>Dewey Class. No.: </label>614.532  / B58M