The distribution of traffic in Great Britain through the 24 hours of the day in 1968/

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Manylion Llyfryddiaeth
Prif Awduron: 416011 Dunn, J. B., Hutchings, I. J., Transport and Road Research Laboratory (Great Britain)
Fformat:
Cyhoeddwyd: Crowthorne, Berkshire : Road Research Laboratory, 1969
Pynciau: