World Health Organization. (1984). Guide Lines for Dringking - Water Quality. World Health Organisation.
シカゴスタイル引用形World Health Organization. Guide Lines for Dringking - Water Quality. Geneva: World Health Organisation, 1984.
MLA引用形式World Health Organization. Guide Lines for Dringking - Water Quality. World Health Organisation, 1984.
警告: この引用は必ずしも正確ではありません.