APA-referens (7:e uppl.)
World Bank Group & ebrary, Inc. (2010). Improving primary health care delivery in Nigeria: Evidence from four states. World Bank Group.
Chicago-referens (17:e uppl.)
World Bank Group och Inc ebrary. Improving Primary Health Care Delivery in Nigeria: Evidence from Four States. Washington, D.C.: World Bank Group, 2010.
MLA-referens (9:e uppl.)
World Bank Group och Inc ebrary. Improving Primary Health Care Delivery in Nigeria: Evidence from Four States. World Bank Group, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.