APA (7th ed.) Citation

Richards, S. H., Huddleston, N. D., & Bowman, J. D. (1981). Driver understanding of work zone flagger signals and signaling devices. Texas Transportation Institute.

Chicago Style (17th ed.) Citation

Richards, Stephen H., Nada D. Huddleston, and Janet D. Bowman. Driver Understanding of Work Zone Flagger Signals and Signaling Devices. College Station: Texas Transportation Institute, 1981.

MLA (9th ed.) Citation

Richards, Stephen H., et al. Driver Understanding of Work Zone Flagger Signals and Signaling Devices. Texas Transportation Institute, 1981.