The World Bank. (2009). World Bank Group guarantee instruments 1990-2007: An independent evaluation. World Bank Group.
Lua i Stíl Chicago (17ú heag.)The World Bank. World Bank Group Guarantee Instruments 1990-2007: An Independent Evaluation. Washington: World Bank Group, 2009.
Lua MLA (9ú heag.)The World Bank. World Bank Group Guarantee Instruments 1990-2007: An Independent Evaluation. World Bank Group, 2009.
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