Krell, K., Ernst, R., & Lenz, K. (1978). Costs and benefits of general speed limits: (maximum and minimum speeds) : report of the thirty-seventh Round Table on Transport Economics, held in Paris on 24th and 25th February, 1977. European Conference of Ministers of Transport.
Chicago Style (17th ed.) CitationKrell, Karl, R. Ernst, and Karl-Heinz Lenz. Costs and Benefits of General Speed Limits: (maximum and Minimum Speeds) : Report of the Thirty-seventh Round Table on Transport Economics, Held in Paris on 24th and 25th February, 1977. [Paris]: European Conference of Ministers of Transport, 1978.
MLA (9th ed.) CitationKrell, Karl, et al. Costs and Benefits of General Speed Limits: (maximum and Minimum Speeds) : Report of the Thirty-seventh Round Table on Transport Economics, Held in Paris on 24th and 25th February, 1977. European Conference of Ministers of Transport, 1978.