Não informado. (1921). Health and empire. British Social Hygiene Council.
Style de citation Chicago (17e éd.)Não informado. Health and Empire. London: British Social Hygiene Council, 1921.
Style de citation MLA (8e éd.)Não informado. Health and Empire. British Social Hygiene Council, 1921.
Attention : ces citations peuvent ne pas être correctes à 100%.