Não informado. (1972). Industrial wastes information bulletin. Hazardons Wastes Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Industrial Wastes Information Bulletin. Didcot, Inglaterra: Hazardons Wastes Service, 1972.
Lua MLA (8ú heag.)Não informado. Industrial Wastes Information Bulletin. Hazardons Wastes Service, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.