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Lua i Stíl Chicago (17ú heag.)Bems, Rudolfs, agus Irineu de Carvalho Filho. Exchange Rate Assessments: Methodologies for Oil Exporting Countries. [Washington, D.C.]: International Monetary Fund, Research Department, 2009.
Lua MLA (9ú heag.)Bems, Rudolfs, agus Irineu de Carvalho Filho. Exchange Rate Assessments: Methodologies for Oil Exporting Countries. International Monetary Fund, Research Department, 2009.
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