World Health Organization Unite Nations Environment Programme FAO. (2006). Who guidelines for the safe use of water, excreta and greywater: Wastewater use in agriculture. World Health Organization.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWorld Health Organization Unite Nations Environment Programme FAO. Who Guidelines for the Safe Use of Water, Excreta and Greywater: Wastewater Use in Agriculture. Geneva: World Health Organization, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWorld Health Organization Unite Nations Environment Programme FAO. Who Guidelines for the Safe Use of Water, Excreta and Greywater: Wastewater Use in Agriculture. World Health Organization, 2006.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.