Jessica Dunham
S. Gregory Hatcher
United States. Congress. Senate. Committee on Post Offices and Post Roads
G. C. Clemens
S. DeWitt Bloodgood
Highway Research Board.
National Cooperative Highway Research Program.
National Conference on Increasing Highway Engineering Productivity (1957 Boston, Mass.)
Unknown Author
Mexico. Secretaría de Obras Públicas.
Yingming Yan
Parsons, Brinckerhoff, Quade & Douglas
Stephen Remias
Richard Southall
American Association of State Highway and Transportation Officials. Task Force on Geometric Design.
Derrick King
Michael Selfe
George Charlesworth