Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.