The Economist. (2002). E-trends.
Lua i Stíl Chicago (17ú heag.)The Economist. E-trends. London, 2002.
Lua MLA (9ú heag.)The Economist. E-trends. 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)