APA (7th ed.) Citation

De Silva. (2005). A history of Sri Lanka (Rev. & updated ed.). Penguin Books.

Chicago Style (17th ed.) Citation

De Silva. A History of Sri Lanka. Rev. & updated ed. New Delhi New York, New York: Penguin Books, 2005.

MLA (8th ed.) Citation

De Silva. A History of Sri Lanka. Rev. & updated ed. Penguin Books, 2005.