Bojkov, Rumen D <br/><br/>
The changing ozone layer 
/ by United Nations (UNO) 
 - New York :   United Nations,  1995 
 - 24 pages : illustrations 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OZONE LAYER<br/>CLIMATE
<br/><br/><label>LC Class. No.: </label>UNO(02)1995/2