APA (7th ed.) Citation

National Research Council (U.S.). Transportation Research Board, United States. Federal Highway Administration, American Association of State Highway and Transportation Officials, & Rodegerdts, L. (2007). Roundabouts in the United States. Transportation Research Board.

Chicago Style (17th ed.) Citation

National Research Council (U.S.). Transportation Research Board, United States. Federal Highway Administration, American Association of State Highway and Transportation Officials, and Lee Rodegerdts. Roundabouts in the United States. Washington, D.C: Transportation Research Board, 2007.

MLA (9th ed.) Citation

National Research Council (U.S.). Transportation Research Board, et al. Roundabouts in the United States. Transportation Research Board, 2007.