Ramsar Convention on wetlands <br/><br/>
Guidelines for International Co-Operation Under the Ramsar Convention on wetlands 

 - Switzerland  Ramsar Convention Bureau  1971 
 - 51 p. ; 30 cm. 
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Dewey Class. No.: </label>333.918GUI