Jayathilaka, W <br/><br/>
පරමාණුක න්‍යෂ්ටිය 
 Paramaanuka nayashhtiya 

 - Pannipitiya  Sachinthaka   1987 
 - 63p.,  22 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Atomic physics
<br/><br/><label>Universal Decimal Class. No.: </label>539.1  / JAY