Não informado. (2001). Economic Quarterly. Federal Reserve Bank of Richmond.
Lua i Stíl Chicago (17ú heag.)Não informado. Economic Quarterly. Richmond, Va: Federal Reserve Bank of Richmond, 2001.
Lua MLA (8ú heag.)Não informado. Economic Quarterly. Federal Reserve Bank of Richmond, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.