APA (7th ed.) Citation

Campbell, J. L., Richard, C. M., & Graham, J. L. (2008). Human factors guidelines for road systems. Transportation Research Board.

Chicago Style (17th ed.) Citation

Campbell, John L., Christian M. Richard, and Jerry L. Graham. Human Factors Guidelines for Road Systems. Washington, D.C.: Transportation Research Board, 2008.

MLA (9th ed.) Citation

Campbell, John L., et al. Human Factors Guidelines for Road Systems. Transportation Research Board, 2008.