Walker, J. (2018). Road pricing: Technologies, economics and acceptability. The Institution of Engineering and Technology. https://doi.org/10.1049/PBTR008E
Citace podle Chicago (17th ed.)Walker, John. Road Pricing: Technologies, Economics and Acceptability. London, United Kingdom: The Institution of Engineering and Technology, 2018. https://doi.org/10.1049/PBTR008E.
Citace podle MLA (9th ed.)Walker, John. Road Pricing: Technologies, Economics and Acceptability. The Institution of Engineering and Technology, 2018. https://doi.org/10.1049/PBTR008E.
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