APA Citation

Wang, H., & Whittington, D. (2015). Willingness to Pay for Air Quality Improvements in Sofia, Bulgaria. World Bank, Washington, DC.

Chicago Style Citation

Wang, Hua, and Dale Whittington. Willingness to Pay for Air Quality Improvements in Sofia, Bulgaria. World Bank, Washington, DC, 2015.

MLA Citation

Wang, Hua, and Dale Whittington. Willingness to Pay for Air Quality Improvements in Sofia, Bulgaria. World Bank, Washington, DC, 2015.

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