Sivertsen Bjarne <br/><br/>
Air pollution: sulphur emmissions and transfrontier in  Southern Africa 

 - London   SADC ELMS 1995. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air pollution
<br/><br/><label>Dewey Class. No.: </label>628.53 SIV