Sri lanka's middle parth to sustainable development in the 21 st century 

 -  Minersty of environment and natural resource  2002 
 - 84p., ill.,  27 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Universal Decimal Class. No.: </label>581.14  / NAT