Holroyd, J., & Robertson, D. I. (1973). Strategies for area traffic control systems: Present and future. Transport and Road Research Laboratory.
Citace podle Chicago (17th ed.)Holroyd, Joyce, a D. I. Robertson. Strategies for Area Traffic Control Systems: Present and Future. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1973.
Citace podle MLA (9th ed.)Holroyd, Joyce, a D. I. Robertson. Strategies for Area Traffic Control Systems: Present and Future. Transport and Road Research Laboratory, 1973.
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