(2004). Science 2004 May. AAAS.
Lua i Stíl Chicago (17ú heag.)Science 2004 May. AAAS, 2004.
Lua MLA (8ú heag.)Science 2004 May. AAAS, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)