European Conference of Ministers of Transport. (1992). Investment in transport infrastructure in the 1980s. ECMT ; OECD Publications and Information Centre, distributor].

European Conference of Ministers of Transport. Investment in Transport Infrastructure in the 1980s. Paris, France : [Washington, D.C.: ECMT ; OECD Publications and Information Centre, distributor], 1992.

European Conference of Ministers of Transport. Investment in Transport Infrastructure in the 1980s. ECMT ; OECD Publications and Information Centre, distributor], 1992.