International Labour Office. Prevencin̤ de grandes accidentes industriales.
Lua i Stíl Chicago (17ú heag.)International Labour Office. Prevencin̤ De Grandes Accidentes Industriales.
Lua MLA (9ú heag.)International Labour Office. Prevencin̤ De Grandes Accidentes Industriales.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.