World Bank & ebrary, Inc. (2006). Consulting services manual 2006: A comprehensive guide to the selection of consultants at the World Bank. World Bank.
Cita Chicago (17th ed.)World Bank i Inc ebrary. Consulting Services Manual 2006: A Comprehensive Guide to the Selection of Consultants at the World Bank. Washington, D.C.: World Bank, 2006.
Cita MLA (9th ed.)World Bank i Inc ebrary. Consulting Services Manual 2006: A Comprehensive Guide to the Selection of Consultants at the World Bank. World Bank, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.