The state of the environment, 1972- 1982  

 - Nairobi, Kenya  United Nations Environment Programme (UNEP)  1982  
 - p.  ill.  23 cm 
<br/><br/><label>ISBN: </label>9280710613 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy<br/>Environmental protection--History