Herath, M. M. J. W. <br/><br/>
Mineral based industries of Sri Lanka / 
by M. M. J. W. Herath 
 - London :  Commonwealth Geological Liaison Office,  1977 
 - 43 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>X920046640 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Sri Lanka