United States. Federal Highway Administration
Wilbur Smith and Associates.
Oscar E. Thomson
Joseph Austin Durrenberger
State-wide Highway Planning Survey (Calif.)
Sixth Massachusetts Turnpike Corporation.
John Loudon M'Adam
Great Britain
Kevish 6.
New Jersey. Legislature. General Assembly. Transportation Committee.
Alexander Fothergill
Alexander Patrick Fleming
Kenneth Austin MacMahon
Harold Vincent Miller
Maryland
Alan Charles Bell Urwin
United States. Congress. House
New Hampshire
Howard, Needles, Tammen & Bergendoff.
Frederic J. Wood