APA (7th ed.) Citation

Holroyd, J., & Robertson, D. I. (1973). Strategies for area traffic control systems: Present and future. Transport and Road Research Laboratory.

Chicago Style (17th ed.) Citation

Holroyd, Joyce, and D. I. Robertson. Strategies for Area Traffic Control Systems: Present and Future. Crowthorne, Berkshire: Transport and Road Research Laboratory, 1973.

MLA (9th ed.) Citation

Holroyd, Joyce, and D. I. Robertson. Strategies for Area Traffic Control Systems: Present and Future. Transport and Road Research Laboratory, 1973.