APA (7th ed.) Citation

Howarth, N., Howarth, N., & Clark, G. (2012). The political economy of technological change, energy and climate change.

Chicago Style (17th ed.) Citation

Howarth, N., Nicholas Howarth, and G. Clark. The Political Economy of Technological Change, Energy and Climate Change. 2012.

MLA (9th ed.) Citation

Howarth, N., et al. The Political Economy of Technological Change, Energy and Climate Change. 2012.