Protecting and restoring calamity areas. 

 - Los Banos, Laguna :  PCARRD,  c1998. 
 - 82 ;  22 cm. 
<br/><br/> Includes bibliographical references. 
<br/><br/> Summary Proceedings no. 4. 
<br/><br/><label>ISBN: </label>9712004503