Não informado. (1970). Regional Conference Series in Mathematics. American Mathematical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Regional Conference Series in Mathematics. Providence, RI: American Mathematical Society, 1970.
Lua MLA (8ú heag.)Não informado. Regional Conference Series in Mathematics. American Mathematical Society, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.