APA (7 ম সংস্করণ) উদ্ধৃতি

World Health Organization. (1981). Drinking-water and sanitation, 1981-1990: A way to health. World Health Organization.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

World Health Organization. Drinking-water and Sanitation, 1981-1990: A Way to Health. Geneva: World Health Organization, 1981.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

World Health Organization. Drinking-water and Sanitation, 1981-1990: A Way to Health. World Health Organization, 1981.