ලංකාවට විදුලි යුගය උදාවෙයි 
 Lankaavata viduli yugaya udaa veyi 

 -  Ministry of transport and farmas indrustry  1948 
 - 24p., ill.,  24 cm 
<br/><br/> Photo of Sir Jhon Kothalawala 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydro power <br/>Electricity
<br/><br/><label>Universal Decimal Class. No.: </label>621.311.21  / LAN