European Commission. (1995). 79/869/EEC, Council directive of 9 October 1979 concerning the methods of measurement and frequencies of sampling and analysis of surface water intended for the abstraction of drinking water in the member States: Provisional, unrevised texts 9 languages. Luxembourg: Office for Official Publications of the European Communities.

European Commission. 79/869/EEC, Council Directive of 9 October 1979 Concerning the Methods of Measurement and Frequencies of Sampling and Analysis of Surface Water Intended for the Abstraction of Drinking Water in the Member States: Provisional, Unrevised Texts 9 Languages. Luxembourg: Office for Official Publications of the European Communities, 1995.

European Commission. 79/869/EEC, Council Directive of 9 October 1979 Concerning the Methods of Measurement and Frequencies of Sampling and Analysis of Surface Water Intended for the Abstraction of Drinking Water in the Member States: Provisional, Unrevised Texts 9 Languages. Luxembourg: Office for Official Publications of the European Communities, 1995.