Não informado. (1975). Bulletin of number theory and related topics. Universidad de El Salvador.
Lua i Stíl Chicago (17ú heag.)Não informado. Bulletin of Number Theory and Related Topics. Buenos Aires: Universidad de El Salvador, 1975.
Lua MLA (8ú heag.)Não informado. Bulletin of Number Theory and Related Topics. Universidad de El Salvador, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.