Unknown Author
F. D. Hobbs
Martin Wohl
Gordon Ronald Wells
William R. McShane
Myer Kutz
A. T. Papagiannakis
Great Britain Ministry of Transport and Civil Aviation
Traffic Engineering and Control.
H. W. D. Stone
Bruce Douglas Greenshields
Michael A. P. Taylor
R. J. Salter
A. S. Narasimha Murthy
United States. Bureau of Public Roads
Eduardo Alcântara de Vasconcellos
Clarkson Hill Oglesby
Ghazi Gaseem Al-Khateeb
Wilfred Owen