APA (7 ম সংস্করণ) উদ্ধৃতি

World Health Organization United Nations Environment Programme. (1991). Surface water drainage for low-income communities. World Health Organization in collaboration with the United Nations Environment Programme.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

World Health Organization United Nations Environment Programme. Surface Water Drainage for Low-income Communities. Geneva: World Health Organization in collaboration with the United Nations Environment Programme, 1991.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

World Health Organization United Nations Environment Programme. Surface Water Drainage for Low-income Communities. World Health Organization in collaboration with the United Nations Environment Programme, 1991.