Labour force and socio economic survey 1980 -1981 Sri Lanka  Household income and expenditure 

 - colombo  Ministry of plan implementation  1983 
 - 250p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>economy<br/>percapita
<br/><br/><label>Dewey Class. No.: </label>710  / SRI