World Bank & ebrary, Inc. (2006). Consulting services manual 2006: A comprehensive guide to the selection of consultants at the World Bank. World Bank.
Chicago-viite (17. p.)World Bank ja Inc ebrary. Consulting Services Manual 2006: A Comprehensive Guide to the Selection of Consultants at the World Bank. Washington, D.C.: World Bank, 2006.
MLA-viite (9. p.)World Bank ja Inc ebrary. Consulting Services Manual 2006: A Comprehensive Guide to the Selection of Consultants at the World Bank. World Bank, 2006.
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