APA

European Conference of Ministers of Transport, . (1981). Exchange of information on investment criteria applied to transport infrastructure projects. Paris: European Conference of Ministers of Transport.

Chicago

European Conference of Ministers of Transport, . 1981. Exchange of information on investment criteria applied to transport infrastructure projects. Paris: European Conference of Ministers of Transport.

Harvard

European Conference of Ministers of Transport, . (1981). Exchange of information on investment criteria applied to transport infrastructure projects. Paris: European Conference of Ministers of Transport.

MLA

European Conference of Ministers of Transport, . Exchange of information on investment criteria applied to transport infrastructure projects. Paris: European Conference of Ministers of Transport. 1981.