Proceedings. 

 - Morges, Switzerland,  International Union for Conservation of Nature and Natural Resources,  1968. 
 - IUCN publications, new series,  no. 12 .
 - IUCN publications ;  new ser., no .
<br/><br/> At head of title: The Commission on Ecology of the International Union for Conservation of Nature and Natural Resources. International Council for Bird Preservation (ICBP). International Wildfowl Research Bureau (IWRB). 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>70885121 //r86 
<br/><br/><label>Nat. Bib. No.: </label>Sw*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation -- Congresses.--Nature conservation -- Congresses.<br/>Wetlands -- Congresses.--Wetlands -- Congresses.<br/>Waterfowl management -- Congresses.--Waterfowl management -- Congresses.
<br/><br/><label>LC Class. No.: </label>QH75  / .T36 1967 
<br/><br/><label>Dewey Class. No.: </label>333.9/18