377 L 0539: Council Directive 77/539/EEC of 28 June 1977 on the approximation of the laws of the Member States relating to reversing lamps for motor vehicles and their trailers (OJ No L 220, 29.8.1977, p.
377 L 0539: Treoir 77/539/CEE ón gComhairle an 28 Meitheamh 1977 maidir le comhfhogasú dhlíthe na mBallstát a bhaineann le soilse cúlaithe do mhótarfheithiclí agus dá leantóirí (IO Uimh. L 220, 29.8.1977, Ich.