Annual report of the director /  
Pan American Health Organization. 
 - Washington, DC :    World Health Organization,    1958- 
 - v. :    ill. ;    24 cm. 
 - Annual 
 - No.30 (1958)- 
<br/><br/>  Latest issue consulted: No. 50 (1962). 
<br/><br/><label>ISSN: </label>0085-462X 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Public Health -- Periodicals.
<br/><br/><label>National Library of Medicine Call No.: </label>PER W2 MP2   /  P9a