Sixth Council Directive 77/388/EEC of 17 May 1977 on the harmonization of the laws of the Member States relating to turnover taxes - Common system of value added tax: uniform basis of assessment
Modified by
Eighteenth Council Directive 89/465/EEC of 18 July 1989 on the harmonization of the laws of the Member States relating to turnover taxes - Abolition of certain derogations provided for in Article 28 (3) of the Sixth Directive, 77/388/EEC