Lua APA (7ú heag.)
(2009). United States. OECD.
Lua i Stíl Chicago (17ú heag.)
United States. Paris, France: OECD, 2009.
Lua MLA (9ú heag.)
United States. OECD, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.