APA (7 ম সংস্করণ) উদ্ধৃতি

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.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

World Health Organization 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.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

World Health Organization 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.