Wijayananda, N.P <br/><br/>
The graphite industry in Sri Lanka 

 - Colombo  Natural Resources Energy & Sciences Authority  1987 
 - [v],95p.  21cm 
 - Sciences education series No.24 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Graphite<br/>Economic geology<br/>Carbonaceous materials
<br/><br/><label>Dewey Class. No.: </label>553.26  / WIJ