APA (7th ed.) Citation

Government of Ceylon. (1955). Sigiriya - A Fortress in the Sky. Government Press.

Chicago Style (17th ed.) Citation

Government of Ceylon. Sigiriya - A Fortress in the Sky. Colombo: Government Press, 1955.

MLA (9th ed.) Citation

Government of Ceylon. Sigiriya - A Fortress in the Sky. Government Press, 1955.

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