APA (7th ed.) Citation

Helm, D. (2005). Climate-change policy / edited by Dieter Helm. Oxford University Press.

Chicago Style (17th ed.) Citation

Helm, Dieter. Climate-change Policy / Edited by Dieter Helm. Oxford ; New York: Oxford University Press, 2005.

MLA (9th ed.) Citation

Helm, Dieter. Climate-change Policy / Edited by Dieter Helm. Oxford University Press, 2005.

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