விஞ்ஞானமும் தொழிநூட்பமும்/  Tamil 
 Science and Technology,Vinjanamum Tholinutpamum 

 - Srilanka:  Station For Alternative Policies,  2004. 
 - 74p.:  28cm. 
<br/><br/><label>ISBN: </label>9558037532 
<br/><br/><label>Dewey Class. No.: </label>54:62  / VIB