Census of population, Ceylon, 1963 /
Ceylon.Janalēkhana hā Saṅkhyālēkhana Depārtamēntuva.
Colombo : Printed at the Govt. Press, Ceylon,
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v.1, pt. 1. Tables based on a 10% sample. General characteristics -- v. 1, pt. 2. The gainfully employed population. Tables based on a 10% sample.