Não informado. (1921). Health and empire. British Social Hygiene Council.
Chicagoスタイル(17版)引用形式Não informado. Health and Empire. London: British Social Hygiene Council, 1921.
MLA(8版)引用形式Não informado. Health and Empire. British Social Hygiene Council, 1921.
警告: この引用は必ずしも正確ではありません.