Não informado. Texas mathematics teachers bulletin. Texas University.
Lua i Stíl Chicago (17ú heag.)Não informado. Texas Mathematics Teachers Bulletin. Austin, Tex: Texas University.
Lua MLA (8ú heag.)Não informado. Texas Mathematics Teachers Bulletin. Texas University.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.