World Health Organization. (1984). Guide Lines for Dringking - Water Quality. World Health Organisation.
Chicago Edition CitationWorld Health Organization. Guide Lines for Dringking - Water Quality. Geneva: World Health Organisation, 1984.
Deismireacht MLAWorld Health Organization. Guide Lines for Dringking - Water Quality. World Health Organisation, 1984.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.