UI, F. (2009). Journal of Population. Demographic Institute.
Lua i Stíl Chicago (17ú heag.)UI, FE. Journal of Population. Demographic Institute, 2009.
Lua MLA (9ú heag.)UI, FE. Journal of Population. Demographic Institute, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.