AUTHOR
- American Association of State Highway and Transportation Officials 1 Rezultatów
- Daily, K.
- Hughes, Warren Edward 1956- 1 Rezultatów
- McGee, Hugh W. 1 Rezultatów
- National Cooperative Highway Research Program 1 Rezultatów
- National Research Council (U.S.). Transportation Research Board 1 Rezultatów
- United States. Federal Highway Administration