APA aipamena

World Health Organization & United Nations Environment Programme. (2006). Who guidelines for the safe use of wastewater excreta and greywater: Waste water and excreta use in agriculture. World Health Organization.

Chicago Style aipamena

World Health Organization and United Nations Environment Programme. Who Guidelines for the Safe Use of Wastewater Excreta and Greywater: Waste Water and Excreta Use in Agriculture. Geneva: World Health Organization, 2006.

MLA aipamena

World Health Organization and United Nations Environment Programme. Who Guidelines for the Safe Use of Wastewater Excreta and Greywater: Waste Water and Excreta Use in Agriculture. World Health Organization, 2006.