Environmental Health Perspectives. The National Institute of Environmental Health Sciences.
Lua i Stíl Chicago (17ú heag.)Environmental Health Perspectives. The National Institute of Environmental Health Sciences.
Lua MLA (9ú heag.)Environmental Health Perspectives. The National Institute of Environmental Health Sciences.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.