Perera, H.D.B.S. <br/><br/>
Trend Analysis of the Use of Natural Resources in the Construction Industry 

 - Sri Lanka,  The Department of National Planning,  2002, 
 - vi, 54p.  24cm. 
<br/><br/><label>ISBN: </label>9559017098 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Resources Construction Industry