Papers and proceedings / 
ed. by Hugh F.I. Elliott. 
 - Morges, Switzerland,  1970-1971. 
 - IUCN publications. New series ;  IUCN publications. New series ;  no. 17-21 .
<br/><br/> English or French. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural resources -- Congresses.--Natural resources -- Congresses.<br/>Wildlife conservation -- Congresses.--Wildlife conservation -- Congresses.<br/>Ecology -- Congresses.--Ecology -- Congresses.