World Health Organization. (1981). Drinking-water and sanitation, 1981-1990: A way to health. WHO.
Chicago Style (17th ed.) CitationWorld Health Organization. Drinking-water and Sanitation, 1981-1990: A Way to Health. Geneva: WHO, 1981.
MLA (9th ed.) CitationWorld Health Organization. Drinking-water and Sanitation, 1981-1990: A Way to Health. WHO, 1981.
Warning: These citations may not always be 100% accurate.