Não informado. (1999). Bell Labs Technology. Lucent technologies.
Lua i Stíl Chicago (17ú heag.)Não informado. Bell Labs Technology. Murray Hill, NJ: Lucent technologies, 1999.
Lua MLA (8ú heag.)Não informado. Bell Labs Technology. Lucent technologies, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.