Paul H. Wright
Clarkson Hill Oglesby
Turner-Fairbank Highway Research Center.
International Road Federation.
National Research Council (U.S.). Highway Research Board.
Highway Research Board.
Unknown Author
Bertram D. Tallamy Associates.
W. A. Lewis
Research and Technology Coordinating Com
United States. Federal Highway Administration
National Research Council (US)
Kenneth E. Cook
National Cooperative Highway Research Program.
Edwin J. C. Sobey
United States. Federal Highway Administration.
Lisa Pope
Nigerian Building & Road Research Institute.