APA (7th ed.) Citation

Sigman, H. (2007). Decentralization and environmental quality: An international analysis of water pollution. National Bureau of Economic Research.

Chicago Style (17th ed.) Citation

Sigman, Hilary. Decentralization and Environmental Quality: An International Analysis of Water Pollution. Cambridge, Mass: National Bureau of Economic Research, 2007.

MLA (9th ed.) Citation

Sigman, Hilary. Decentralization and Environmental Quality: An International Analysis of Water Pollution. National Bureau of Economic Research, 2007.