Стиль цитування APA (7-ме видання)

World Bank Group & ebrary, Inc. (2010). Improving primary health care delivery in Nigeria: Evidence from four states. World Bank Group.

Чикаго стиль цитування (17-те видання)

World Bank Group та Inc ebrary. Improving Primary Health Care Delivery in Nigeria: Evidence from Four States. Washington, D.C.: World Bank Group, 2010.

Стиль цитування MLA (9-ме видання)

World Bank Group та Inc ebrary. Improving Primary Health Care Delivery in Nigeria: Evidence from Four States. World Bank Group, 2010.