Clarke, Jhon A. <br/><br/>
ඇසිම හා පෙනිම 
 Asima ha penima 

 - Colombo  M.D.Gunasena and Brother   1961 
 - 80p., ill.,  22 cm 
 - Naveena vidyaa idirigamana 7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics
<br/><br/><label>Universal Decimal Class. No.: </label> / CLA