Board, N. R. C. T. R. (1991). Geometric design considerations 1991. Washington, D.C : Transportation Research Board, National Research Council.
Chicago Style (17th ed.) CitationBoard, National Research Council. Transportation Research. Geometric Design Considerations 1991. Washington, D.C : Transportation Research Board, National Research Council, 1991.
ציטוט MLABoard, National Research Council. Transportation Research. Geometric Design Considerations 1991. Washington, D.C : Transportation Research Board, National Research Council, 1991.
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