Não informado. (1978). World Health Statistics Quarterly. World Health Organization.
Style de citation Chicago (17e éd.)Não informado. World Health Statistics Quarterly. Geneva, Suíça: World Health Organization, 1978.
Style de citation MLA (8e éd.)Não informado. World Health Statistics Quarterly. World Health Organization, 1978.
Attention : ces citations peuvent ne pas être correctes à 100%.