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.
Chicagoスタイル(17版)引用形式National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, , Ingrid B. Potts. Safety of U-turns at Unsignalized Median Openings. Washington, D.C: Transportation Research Board, 2004.
MLA(9版)引用形式National Cooperative Highway Research Program, et al. Safety of U-turns at Unsignalized Median Openings. Transportation Research Board, 2004.
警告: この引用は必ずしも正確ではありません.