APA (7th ed.) Citation

Clark, D., & Lindegard. (2006). The rough guide to ethical living. Rough Guides.

Chicago Style (17th ed.) Citation

Clark, Duncan, and Lindegard. The Rough Guide to Ethical Living. London: Rough Guides, 2006.

MLA (8th ed.) Citation

Clark, Duncan, and Lindegard. The Rough Guide to Ethical Living. Rough Guides, 2006.

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