APA

World Health Organization W., . (1997). Dengue haemorrhagic fever : diagnosis, treatment, prevention and control / World Health Organization. Geneva: World Health Organization.

Chicago

World Health Organization Who, . 1997. Dengue haemorrhagic fever : diagnosis, treatment, prevention and control / World Health Organization. Geneva: World Health Organization.

Harvard

World Health Organization W., . (1997). Dengue haemorrhagic fever : diagnosis, treatment, prevention and control / World Health Organization. Geneva: World Health Organization.

MLA

World Health Organization Who, . Dengue haemorrhagic fever : diagnosis, treatment, prevention and control / World Health Organization. Geneva: World Health Organization. 1997.