Não informado. (1947). Institute of Petroleum Review. Institute of Petroleum.
Lua i Stíl Chicago (17ú heag.)Não informado. Institute of Petroleum Review. London: Institute of Petroleum, 1947.
Lua MLA (8ú heag.)Não informado. Institute of Petroleum Review. Institute of Petroleum, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.