World Health Organization Kobe Center. (1999). Ageing and health: A global challenge for the 21st century. World Health organization.
Citação do estilo Chicago (17ª ed.)World Health Organization Kobe Center. Ageing and Health: A Global Challenge for the 21st Century. Belgium: World Health organization, 1999.
Citação MLA (8ª ed.)World Health Organization Kobe Center. Ageing and Health: A Global Challenge for the 21st Century. World Health organization, 1999.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.