APA (7th ed.) Citation

Cox, N. T. (1968). The effect of dirt on vehicle headlamp performance. Road Research Laboratory.

Chicago Style (17th ed.) Citation

Cox, N. T. The Effect of Dirt on Vehicle Headlamp Performance. Crowthorne, Berkshire: Road Research Laboratory, 1968.

MLA (9th ed.) Citation

Cox, N. T. The Effect of Dirt on Vehicle Headlamp Performance. Road Research Laboratory, 1968.