APA (7th ed.) Citation

Holroyd, J., & Hillier, J. A. (1971). The Glasgow experiment: PLIDENT and after. Road Research Laboratory.

Chicago Style (17th ed.) Citation

Holroyd, Joyce, and J. A. Hillier. The Glasgow Experiment: PLIDENT and After. Crowthorne, Berkshire: Road Research Laboratory, 1971.

MLA (9th ed.) Citation

Holroyd, Joyce, and J. A. Hillier. The Glasgow Experiment: PLIDENT and After. Road Research Laboratory, 1971.