APA (7th ed.) Citation

Roop, S. S., Brackett, R. Q., Huchingson, R. D., & Rowan, N. J. (1981). Evaluation of speed and accident reduction through increased traffic law enforcement.

Chicago Style (17th ed.) Citation

Roop, Stephen Shelton, R. Q. Brackett, R. D. Huchingson, and N. J. Rowan. Evaluation of Speed and Accident Reduction Through Increased Traffic Law Enforcement. 1981.

MLA (9th ed.) Citation

Roop, Stephen Shelton, et al. Evaluation of Speed and Accident Reduction Through Increased Traffic Law Enforcement. 1981.