P.L. Olson ... [and others] ; research sponsored by the American Association of State Highway and Transportation Officials, in cooperation with the Federal Highway Administration
Date
[1983]
Series
Report (National Cooperative Highway Research Program) ; 270
Report (National Cooperative Highway Research Program) 270
Orrin Riley ... [and others] ; research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration
Date
1978
Series
Report (National Cooperative Highway Research Program) ; 191
Report (National Cooperative Highway Research Program); 191