APA
World Health Organization, . (2003). Surgical care at the district hospital. World Health Organization, Geneva: .
Chicago
World Health Organization, . 2003. Surgical care at the district hospital. World Health Organization, Geneva: .
Harvard
World Health Organization, . (2003). Surgical care at the district hospital. World Health Organization, Geneva: .
MLA
World Health Organization, . Surgical care at the district hospital. World Health Organization, Geneva: . 2003.