Environmental utilization and conservation /  
Department Environme ntal Science, University of Bostwana. 
 - Gaborone :    Department Environmental Science, University of Bostwa na,    1989. 
 - 24 p. ;    23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Conservation of natural resources.
<br/><br/><label>Dewey Class. No.: </label>333.72 UNI