Wijayananda, N.P.  <br/><br/>
Science Education Series No-24 : The Graphite Industry in Sri Lanka 

 - Sri Lanka,  Natural Resources Energy & Science Authority,  1987, 
 - 95p.  23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>The Graphite Industry in Sri Lanka<br/>Science Education Series