Não informado. (1974). CIS abstracts. International Safety and Health Information Centre.
Lua i Stíl Chicago (17ú heag.)Não informado. CIS Abstracts. Geneva, Suíça: International Safety and Health Information Centre, 1974.
Lua MLA (8ú heag.)Não informado. CIS Abstracts. International Safety and Health Information Centre, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.