Quinet, E., & Schuster, H. (1971). Pricing the use of infrastructure: Report on the Seventh Round Table on Transport Economics, held in Paris ... Paris: European Conference of Ministers of Transport.

Quinet, Emile., and Helmut Schuster. Pricing the Use of Infrastructure: Report On the Seventh Round Table On Transport Economics, Held in Paris ... Paris: European Conference of Ministers of Transport, 1971.

Quinet, Emile., and Helmut Schuster. Pricing the Use of Infrastructure: Report On the Seventh Round Table On Transport Economics, Held in Paris ... Paris: European Conference of Ministers of Transport, 1971.