Wang, H., & Whittington, D. (2015). Willingness to Pay for Air Quality Improvements in Sofia, Bulgaria. World Bank, Washington, DC.
Chicago Style (17th ed.) CitationWang, Hua, and Dale Whittington. Willingness to Pay for Air Quality Improvements in Sofia, Bulgaria. World Bank, Washington, DC, 2015.
MLA (8th ed.) CitationWang, 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.