Jones, Norman Howard  <br/><br/>
Scientific background of the international sanitary conferences:   1851-1938  

 - Geneva:   WHO,   1975 
 - 109p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Universal Decimal Class. No.: </label>614.4:001.5]   / L5