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Lua i Stíl Chicago (17ú heag.)APPLEYARD DENNIS R. INTERNATIONAL ECONOMICS. 5TH. BOSTON: MCGRAW-HILL, 2006.
Lua MLA (9ú heag.)APPLEYARD DENNIS R. INTERNATIONAL ECONOMICS. 5TH. MCGRAW-HILL, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.