Não informado. (1971). Rocky Mountain Journal of Mathematics. Rocky Mountain Mathematics Consortium.
Lua i Stíl Chicago (17ú heag.)Não informado. Rocky Mountain Journal of Mathematics. Tempe, Ariz: Rocky Mountain Mathematics Consortium, 1971.
Lua MLA (8ú heag.)Não informado. Rocky Mountain Journal of Mathematics. Rocky Mountain Mathematics Consortium, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.