APA

European Conference of Ministers of Transport, ECMT, . (1992). Improvements in main internationtal piggyback links. Paris: European Conference of Ministers of Transport.

Chicago

European Conference of Ministers of Transport, ECMT, . 1992. Improvements in main internationtal piggyback links. Paris: European Conference of Ministers of Transport.

Harvard

European Conference of Ministers of Transport, ECMT, . (1992). Improvements in main internationtal piggyback links. Paris: European Conference of Ministers of Transport.

MLA

European Conference of Ministers of Transport, ECMT, . Improvements in main internationtal piggyback links. Paris: European Conference of Ministers of Transport. 1992.