APA
Organization for Social Science Research in Eastern Africa, . (2006). The HIV/AIDS challenge in Africa. Addis Ababa: OSSREA.
Chicago
Organization for Social Science Research in Eastern Africa, . 2006. The HIV/AIDS challenge in Africa. Addis Ababa: OSSREA.
Harvard
Organization for Social Science Research in Eastern Africa, . (2006). The HIV/AIDS challenge in Africa. Addis Ababa: OSSREA.
MLA
Organization for Social Science Research in Eastern Africa, . The HIV/AIDS challenge in Africa. Addis Ababa: OSSREA. 2006.