Levels and trends of fertility in Sri Lanka : a district-level analysis. - New York : United Nations (UN) , 1986 - v, 48p. : ill. ; 27 cm. - Asian population studies series, no. 62-F . Includes bibliographical references. Subjects--Topical Terms: Fertility, Human--Sri LankaPopulation--Sri Lanka Gov. Doc. Class. No.: UN ESCAP APSS-62-F