An introduction to the world conservation strategy 

 - Switzerland  IUCN  1984 
 - 28 p.  Illustration 
<br/><br/><label>ISBN: </label>2880327024 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BIOLOGY
<br/><br/><label>Dewey Class. No.: </label>574.5  / INT