APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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