DAVIES, V. (1996). Construction Safety Handbook. Thomas Telford.
Lua i Stíl Chicago (17ú heag.)DAVIES, V.J. Construction Safety Handbook. Thomas Telford, 1996.
Lua MLA (8ú heag.)DAVIES, V.J. Construction Safety Handbook. Thomas Telford, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.