Manual of epidemiology for distinct health management   
ed. by J. P. Vaughan , R. H. Morrow. 
 - Geneva  World Health Organization  1989 
 - viii, 198p. 
<br/><br/><label>ISBN: </label>924154404X 
<br/><br/><label>Dewey Class. No.: </label>614.40202  / N89