Natural Resources and Development / 
Edt. by the Institute for Scientific Co-Operation. 
 - Tübingen, FRG :  Institute for Scientific Co-Operation,  1994. 
 - 111 S. 
<br/><br/><label>ISSN: </label>0340-2797 
 = Natural Resources and Development 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geosciences