Gunatilake, H. (2006). Willingness-to-pay and design of water supply and sanitation projects: A case study. Asian Development Bank.
Chicagoスタイル(17版)引用形式Gunatilake, Herath. Willingness-to-pay and Design of Water Supply and Sanitation Projects: A Case Study. [Mandaluyong City]: Asian Development Bank, 2006.
MLA(9版)引用形式Gunatilake, Herath. Willingness-to-pay and Design of Water Supply and Sanitation Projects: A Case Study. Asian Development Bank, 2006.
警告: この引用は必ずしも正確ではありません.