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.
Цитирование в стиле Чикаго (17-е изд.)National Cooperative Highway Research Program, National Research Council (U.S.). Transportation Research Board, и Ingrid B. Potts. Safety of U-turns at Unsignalized Median Openings. Washington, D.C: Transportation Research Board, 2004.
Цитирование MLA (9-е изд.)National Cooperative Highway Research Program, et al. Safety of U-turns at Unsignalized Median Openings. Transportation Research Board, 2004.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.