Citazione Stile APA (7a Edizione)

National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, & Potts, I. B. (2004). Safety of U-turns at unsignalized median openings. Transportation Research Board.

Citazione stile Chigago Style (17a edizione)

National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, e Ingrid B. Potts. Safety of U-turns at Unsignalized Median Openings. Washington, D.C: Transportation Research Board, 2004.

Citatione MLA (9a ed.)

National Cooperative Highway Research Program, et al. Safety of U-turns at Unsignalized Median Openings. Transportation Research Board, 2004.