Journal of the national science council of Sri Lanka 

 - Colombo  The Natural Resources, Energy and Science Authority of Sri Lanka  1992 
 - 177-286,LII p. 
 - 1993  Vol.21 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOOK BOX 376<br/>HISTORY
<br/><br/><label>Dewey Class. No.: </label>B0376  / LDC