APA

European Conf. Ministers of Transport. Round table Conf. 39, . (1978). Economic prospects for railways. Paris: European Conf. Ministers of Transport. Round table Conf. 39.

Chicago

European Conf. Ministers of Transport. Round table Conf. 39, . 1978. Economic prospects for railways. Paris: European Conf. Ministers of Transport. Round table Conf. 39.

Harvard

European Conf. Ministers of Transport. Round table Conf. 39, . (1978). Economic prospects for railways. Paris: European Conf. Ministers of Transport. Round table Conf. 39.

MLA

European Conf. Ministers of Transport. Round table Conf. 39, . Economic prospects for railways. Paris: European Conf. Ministers of Transport. Round table Conf. 39. 1978.