De Silva A.P.G.S . <br/><br/>
Provincial Profile Of Labour Force  Sri Lanka 1993  English. 
Department of Census and Statistics,  Ministry Of Finance Planning , Ethnic Affairs and National Integration  ,De Silva A.P.G.S . 
 - Sri Lanka :  Department of Census and Statistics,  1993. 
 - x,122p.:  ill.;  26cm. 
<br/><br/><label>Dewey Class. No.: </label>331.1143  / DEP