European Conference of Ministers of Transport. & Gutmann, M. G. (1981). The Working Conditions of Professional Drivers: Effects on Productivity and Road Safety: Report of the Fifty-Third Round Table on Transport Economics Held in Paris on 11-12 December 1980. OECD Publishing.
Cita Chicago Style (17a ed.)European Conference of Ministers of Transport. y M. G. Gutmann. The Working Conditions of Professional Drivers: Effects on Productivity and Road Safety: Report of the Fifty-Third Round Table on Transport Economics Held in Paris on 11-12 December 1980. Paris: OECD Publishing, 1981.
Cita MLA (9a ed.)European Conference of Ministers of Transport. y M. G. Gutmann. The Working Conditions of Professional Drivers: Effects on Productivity and Road Safety: Report of the Fifty-Third Round Table on Transport Economics Held in Paris on 11-12 December 1980. OECD Publishing, 1981.
