APA (7th ed.) Citation

Siddhisena, K. A. P. (1981). The demography of Sri Lanka: K.A.P. Siddhisena. Demographic Training & Research Unit.

Chicago Style (17th ed.) Citation

Siddhisena, K. A. P. The Demography of Sri Lanka: K.A.P. Siddhisena. Colombo: Demographic Training & Research Unit, 1981.

MLA (9th ed.) Citation

Siddhisena, K. A. P. The Demography of Sri Lanka: K.A.P. Siddhisena. Demographic Training & Research Unit, 1981.

Warning: These citations may not always be 100% accurate.