The State of the world environment. 

 - Nairobi, Kenya :  United Nations Environment Programme, 
 - v. :  ill. ;  25 cm. 
 - Annual 
<br/><br/> Description based on: 1987. 
<br/><br/>Complements information contained in the monograph: World enviromnment 1972-1982. 
<br/><br/><label>LCCN: </label>89000213 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pollution--Environmental aspects--Periodicals.<br/>Environmental protection--Periodicals.<br/>Environmental policy--Periodicals.<br/>Ecology--Periodicals.<br/>Human beings--Influence on nature--Periodicals.