APA (7th ed.) Citation

Thomas, G. (2012). The rough guide to sri lanka (Fourth edition.). Rough Guides.

Chicago Style (17th ed.) Citation

Thomas, Gavin. The Rough Guide to Sri Lanka. Fourth edition. New York: Rough Guides, 2012.

MLA (9th ed.) Citation

Thomas, Gavin. The Rough Guide to Sri Lanka. Fourth edition. Rough Guides, 2012.