Não informado. (1928). Journal of Education for Business. Heldref Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Education for Business. Washington: Heldref Publications, 1928.
Lua MLA (8ú heag.)Não informado. Journal of Education for Business. Heldref Publications, 1928.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.