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Lua i Stíl Chicago (17ú heag.)Andrés, Luis Alberto. The Impact of Private Sector Participation in Infrastructure: Lights, Shadows, and the Road Ahead. Washington, D.C.: World Bank, 2008.
Lua MLA (9ú heag.)Andrés, Luis Alberto. The Impact of Private Sector Participation in Infrastructure: Lights, Shadows, and the Road Ahead. World Bank, 2008.
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