Silva, Percy  <br/><br/>
Seminar report : Proceedings of the national awareness seminar on the prevention of land degradation and combating desertification in Sri lanka 

 -  Ministry of forest and environment 
 - 38p.,  26 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Universal Decimal Class. No.: </label>581  / SRI