World Health Organization. (1991). The Work of WHO in the Eastern Mediterranean Region: Annual Report of the Regional Director. World Health Organization Regional Office for the Eastern Mediterranean.
Citação do estilo Chicago (17ª ed.)World Health Organization. The Work of WHO in the Eastern Mediterranean Region: Annual Report of the Regional Director. Egypt: World Health Organization Regional Office for the Eastern Mediterranean, 1991.
Citação MLA (9ª ed.)World Health Organization. The Work of WHO in the Eastern Mediterranean Region: Annual Report of the Regional Director. World Health Organization Regional Office for the Eastern Mediterranean, 1991.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.