Visaria, Pravin Some aspects of relative poverty in Sri Lanka, 1969-70/ prepared by Pravin Visaria. - Washington, D.C.: The World Bank, 1981. - 242 p. : ill. ; 28 cm. - World Bank staff working paper no. 461 . Includes bibliographical references Subjects--Topical Terms: Rural development--Sri Lanka Subjects--Geographic Terms: Sri Lanka--Rural conditions