APA (7th ed.) Citation

De Silva, K. (2005). A history of Sri Lanka. penguin Books viking.

Chicago Style (17th ed.) Citation

De Silva, K. A History of Sri Lanka. New Delhi: penguin Books viking, 2005.

MLA (9th ed.) Citation

De Silva, K. A History of Sri Lanka. penguin Books viking, 2005.

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