Não informado. (1994). Occupational and Environmental Medicine. BMJ Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. Occupational and Environmental Medicine. London: BMJ Publishing, 1994.
Lua MLA (8ú heag.)Não informado. Occupational and Environmental Medicine. BMJ Publishing, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.