Copy to clipboardCopy Roberts, Ian; (2003) Congestion charging and the walking classes. BMJ, 326 (7385). pp. 345-346. ISSN 1468-5833 DOI: https://doi.org/10.1136/bmj.326.7385.345
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Copy to clipboardCopyhttps://doi.org/10.1136/bmj.326.7385.345
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