APA-viite (7. p.)

Helm, D., & Hepburn, C. (2011). The economics and politics of climate change. Oxford University Press.

Chicago-viite (17. p.)

Helm, Dieter, ja Cameron Hepburn. The Economics and Politics of Climate Change. Oxford ; New York: Oxford University Press, 2011.

MLA-viite (8. p.)

Helm, Dieter, ja Cameron Hepburn. The Economics and Politics of Climate Change. Oxford University Press, 2011.