00449nam a2200121Ia 4500008004100000040001700041082002700058110005100085245002900136260005500165300001500220650009200235190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta954.93058bS774S  aSri Lanka. Department of Census and Statistics 0aSri Lanka year book 1975  aColombobDepartment of Census and Statisticsc1975  axiv, 365p.  aSri Lanka-History-Yearbooks; Demographic surveys-Sri Lanka; Economics surveys-Sri Lanka