Wickramasinghe, W.D. Seneviratne, M.C.P. <br/><br/>
TOWARDS A RRAMEWORK FOR REGIONAL SPECIALIZATION IN AGRICULTURAL PRODUCTION. 

 - 1st Ed. 
 - Colombo :   CRDS,   1994. 
 - 37 p. 
<br/><br/><label>Dewey Class. No.: </label>630  / WIC