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
Direktiva Sveta 77/539/EGS z dne 28. junija 1977 o približevanju zakonodaje držav članic o žarometih za vzvratno vožnjo za motorna in priklopna vozila