Cita APA (7th ed.)

Gunatilake, H. (2006). Willingness-to-pay and design of water supply and sanitation projects: A case study. Asian Development Bank.

Cita Chicago (17th ed.)

Gunatilake, Herath. Willingness-to-pay and Design of Water Supply and Sanitation Projects: A Case Study. [Mandaluyong City]: Asian Development Bank, 2006.

Cita MLA (9th ed.)

Gunatilake, Herath. Willingness-to-pay and Design of Water Supply and Sanitation Projects: A Case Study. Asian Development Bank, 2006.