APA-viite (7. p.)
World Bank & ebrary, Inc. (2006). Education in Sierra Leone: Present challenges, future opportunities. World Bank.
Chicago-viite (17. p.)
World Bank ja Inc ebrary. Education in Sierra Leone: Present Challenges, Future Opportunities. Washington, D.C.: World Bank, 2006.
MLA-viite (9. p.)
World Bank ja Inc ebrary. Education in Sierra Leone: Present Challenges, Future Opportunities. World Bank, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.