APA Style

Organization, W, H. (1990). Annual Report 1990 WHO Collaborating Centre for Arbovirus Reference and Research (Dengue and Dengue Hemorrhagic Fevers) . Geneva: World Health Organization.

MLA Style

Organization, World, Health. "Annual Report 1990 WHO Collaborating Centre for Arbovirus Reference and Research (Dengue and Dengue Hemorrhagic Fevers)". Geneva: World Health Organization, 1990. print.