ArXiv.org. Cornell University.
Lua i Stíl Chicago (17ú heag.)ArXiv.org. [S.l.]: Cornell University.
Lua MLA (9ú heag.)ArXiv.org. Cornell University.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)