APA
Organization of African Unity, Organization of African Unity, . (21). Addis Ababa. 55 p: .
Chicago
Organization of African Unity, Organization of African Unity, . 21. Addis Ababa. 55 p: .
Harvard
Organization of African Unity, Organization of African Unity, . (21). Addis Ababa. 55 p: .
MLA
Organization of African Unity, Organization of African Unity, . Addis Ababa. 55 p: . 21.