Whittington, D., & Swarna, V. (1994). The economic benefits of potable water supply projects to households in developing countries. Asian Development Bank.
Cita Chicago (17th ed.)Whittington, Dale, i Venkateswarlu Swarna. The Economic Benefits of Potable Water Supply Projects to Households in Developing Countries. Manila: Asian Development Bank, 1994.
Cita MLA (9th ed.)Whittington, Dale, i Venkateswarlu Swarna. The Economic Benefits of Potable Water Supply Projects to Households in Developing Countries. Asian Development Bank, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.