Resource material on biodiversity for general certificate of education  advanced level 

 - Colombo  IUCN Sri Lanka  1999 
 - vi,83p.  30cm 
<br/><br/><label>ISBN: </label>9558177024 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS OF LAND AND ENERGY<br/>ECONOMICS<br/>BIOLOGICAL RESOURCES<br/>OTHER NATURAL RESOURCE
<br/><br/><label>Dewey Class. No.: </label>333.95  / RES