(2003). International Trade Statistics Yearbook. UN.
Lua i Stíl Chicago (17ú heag.)International Trade Statistics Yearbook. New York: UN, 2003.
Lua MLA (8ú heag.)International Trade Statistics Yearbook. UN, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.