Whittington, D., & Swarna, V. (1994). The economic benefits of potable water supply projects to households in developing countries. Asian Development Bank.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWhittington, Dale, और Venkateswarlu Swarna. The Economic Benefits of Potable Water Supply Projects to Households in Developing Countries. Manila: Asian Development Bank, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWhittington, Dale, और Venkateswarlu Swarna. The Economic Benefits of Potable Water Supply Projects to Households in Developing Countries. Asian Development Bank, 1994.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.