E.M. Ludwick and Associates.
National Research Council (U.S.). Transportation Research Board
Puget Sound Council of Governments. Transportation Operators' Committee.
National Research Council (U.S.) Transportation Research Board
Felix Chin
Edith Dorosin
University of Tennessee, Knoxville
Herbert S. Levinson
Ontario. Transportation Technology and Energy Branch.
Charles S. Barone
Charles S Barone
Unknown Author
United States. Dept. of Energy. Office of Conservation and Solar Applications. Office of Transportation Programs.
Terry J. Atherton
Gerald K. Miller
Dennis L. Christiansen
Patrick T. McCoy
United States. General Accounting Office
United States. Dept. of Transportation