World Bank & ebrary, Inc. (2006). Consulting services manual 2006: A comprehensive guide to the selection of consultants at the World Bank. World Bank.
Chicago-referens (17:e uppl.)World Bank och 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-referens (9:e uppl.)World Bank och Inc ebrary. Consulting Services Manual 2006: A Comprehensive Guide to the Selection of Consultants at the World Bank. World Bank, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.