Style de citation APA

World Bank. (2001). Consulting services manual: A comprehensive guide to selection of consultants. World Bank.

Style de citation Chicago

World Bank. Consulting Services Manual: A Comprehensive Guide to Selection of Consultants. Washington, DC: World Bank, 2001.

Style de citation MLA

World Bank. Consulting Services Manual: A Comprehensive Guide to Selection of Consultants. World Bank, 2001.