Não informado. (1962). World Health Statistics Annual. World Health Organization.
Style de citation Chicago (17e éd.)Não informado. World Health Statistics Annual. Geneve, Suíça: World Health Organization, 1962.
Style de citation MLA (8e éd.)Não informado. World Health Statistics Annual. World Health Organization, 1962.
Attention : ces citations peuvent ne pas être correctes à 100%.