European Conference of Ministers of Transport. (1989). Systems of Road Infrastructure Cost Coverage: Report of the Eightieth Round Table on Transport Economics, 9-10 February 1989. OECD Publishing.
Cita Chicago Style (17a ed.)European Conference of Ministers of Transport. Systems of Road Infrastructure Cost Coverage: Report of the Eightieth Round Table on Transport Economics, 9-10 February 1989. Paris: OECD Publishing, 1989.
Cita MLA (9a ed.)European Conference of Ministers of Transport. Systems of Road Infrastructure Cost Coverage: Report of the Eightieth Round Table on Transport Economics, 9-10 February 1989. OECD Publishing, 1989.
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