Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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