Department of Census and Statistics
Statistical abstract of ceylon - 1972/73 /Department of Census and Statistics - Colombo Department of Census and Statistics 1974 - xxv, 406 p.
315.493 / SRI
Statistical abstract of ceylon - 1972/73 /Department of Census and Statistics - Colombo Department of Census and Statistics 1974 - xxv, 406 p.
315.493 / SRI