World Health Organization. (1951). Annual Epidemiological and Vital Statistics (1951.). World Health Organization.
Chicago Edition CitationWorld Health Organization. Annual Epidemiological and Vital Statistics. 1951. Geneve: World Health Organization, 1951.
MLA Edition CitationWorld Health Organization. Annual Epidemiological and Vital Statistics. 1951. World Health Organization, 1951.
Warning: These citations may not always be 100% accurate.