Register of international treaties and other agree 

 - Nairobi  United Nations Environment Programme         1991 
 - 248p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography - Environment
<br/><br/><label>Dewey Class. No.: </label>U:(G:55):(Z), M5;N1