International Labour Office. (1995). Safety, health and welfare on construction sites: A training manual. International Labour Office.
Lua i Stíl Chicago (17ú heag.)International Labour Office. Safety, Health and Welfare on Construction Sites: A Training Manual. Geneva: International Labour Office, 1995.
Lua MLA (9ú heag.)International Labour Office. Safety, Health and Welfare on Construction Sites: A Training Manual. International Labour Office, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.