World Bank. (2008). World trade indicators 2008: Benchmarking policy and performance. World Bank.
Lua i Stíl Chicago (17ú heag.)World Bank. World Trade Indicators 2008: Benchmarking Policy and Performance. Washington, D.C.: World Bank, 2008.
Lua MLA (9ú heag.)World Bank. World Trade Indicators 2008: Benchmarking Policy and Performance. World Bank, 2008.
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