(2007). Nature May 2007. NP6.
Lua i Stíl Chicago (17ú heag.)Nature May 2007. NP6, 2007.
Lua MLA (8ú heag.)Nature May 2007. NP6, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)