Παραπομπή APA

Button, K. J., & Verhoef, E. T. (1998). Road pricing, traffic congestion and the environment: Issues of efficiency and social feasibility. Cheltenham: Edward Elgar.

Παραπομπή Chicago Style

Button, Kenneth J., and Erik T. Verhoef. Road Pricing, Traffic Congestion and the Environment: Issues of Efficiency and Social Feasibility. Cheltenham: Edward Elgar, 1998.

Παραπομπή MLA

Button, Kenneth J., and Erik T. Verhoef. Road Pricing, Traffic Congestion and the Environment: Issues of Efficiency and Social Feasibility. Cheltenham: Edward Elgar, 1998.

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