Public health practice :  report of a seminar ..., Sofia, 24 September-8 October 1970. 

 - Copenhagen :  WHO Regional Office for Europe,  1972. 
 - EURO 4002 .
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Public health -- Congresses.--Public health -- Congresses.