Não informado. (1963). Explorations in Entrepreneurial History. Earlham College.
Lua i Stíl Chicago (17ú heag.)Não informado. Explorations in Entrepreneurial History. Richmond, Ind: Earlham College, 1963.
Lua MLA (8ú heag.)Não informado. Explorations in Entrepreneurial History. Earlham College, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.