Unknown Author
Nicholas J. Garber
Fred L. Mannering
United States. General Accounting Office
Paul H. Wright
Martin Rogers
Spalding, Frederick Putnam
United States. Federal Highway Administration.
United States. General Accounting Office. RCED
A. T. Papagiannakis
International Road Federation.
M. G. Lay
Coleman A. O'Flaherty
Richard Robinson
AECOM
Clarkson Hill Oglesby
R. Sathiyaraj