Não informado. (1950). Proceedings of the American Mathematical Society. American Mathematical Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Proceedings of the American Mathematical Society. Providence, RI: American Mathematical Society, 1950.
Lua MLA (8ú heag.)Não informado. Proceedings of the American Mathematical Society. American Mathematical Society, 1950.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.