World Health Organization & World Health Organization. Arsenic and arsenic compounds.
Lua i Stíl Chicago (17ú heag.)World Health Organization agus World Health Organization. Arsenic and Arsenic Compounds.
Lua MLA (8ú heag.)World Health Organization agus World Health Organization. Arsenic and Arsenic Compounds.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.